The US justice department is investigating two prominent Minnesota officials over alleged attempts to impede federal immigration operations, in an escalation of the Trump’s administration’s clash with Democrats.

Gov Tim Walz and Minneapolis Mayor Jacob Frey, both liberals, are facing an inquiry over statements they made about Immigration and Customs Enforcement (ICE), according to the BBC’s US partner CBS News.

It comes as new details emerged in the death of a Minneapolis woman shot last week by an ICE agent in the city, which drew nationwide protests.

Renee Good, 37, was found with at least three gunshot wounds and possibly a fourth to the head, according to official reports viewed by CBS.

Governor Walz responded on Friday to news of the inquiry against him by posting on X: “Weaponizing the justice system against your opponents is an authoritarian tactic.

“The only person not being investigated for the shooting of Renee Good is the federal agent who shot her.”

The governor has urged Minnesotans to protest peacefully, but members of the Trump administration have accused him of inflammatory rhetoric, like describing ICE as a “modern-day Gestapo”. Frey has demanded that immigration agents get out of Minneapolis.

The Washington Post reports that the Department of Justice has issued subpoenas to both Walz and Frey.

The BBC has reached out to the justice department and Frey.

The inquiry is focused on a federal statute, 18 U.S.C. § 372, which makes it a crime for two or more people to conspire to prevent federal officers from carrying out their official duties through “force, intimidation or threats”, a US official told CBS.

Protests continued in Minneapolis on Friday after new details emerged about the death of Good, and local officials appealed for calm on the streets over this public holiday weekend.

An incident report from the Minneapolis Fire Department, which was viewed by CBS News, said when they responded to the shooting scene last week, it appeared Good had been shot twice in the chest, once in her left forearm and a fourth wound, possibly from a gunshot, was seen “on the left side of the patient’s head”.

Paramedics found Good unresponsive with an irregular pulse, and she was pronounced dead in the ambulance on the way to hospital, according to the report seen by CBS.

The Trump administration has said that Good was impeding federal law enforcement and tried to run the agent over. Local officials say Good was a legal observer who posed no danger.

Video of the incident show ICE agents approaching a car, which is blocking traffic and parked in the middle of the street. An officer instructs her to get out of the car.

As Good turns her wheel apparently trying to drive away, her Honda Pilot SUV pulls forward with one of the agents standing near the front of the vehicle. He pulls his gun and fires.

Footage from the scene shows the agent walking off afterwards.

But Department of Homeland Security (DHS) officials have told CBS the officer suffered internal bleeding to the torso following the incident. No further details have been disclosed.

The FBI is investigating the incident, although there is no federal civil rights inquiry into the agent who opened fire. Local officials and authorities say they have been shut out of the investigation.

Meanwhile, President Donald Trump blasted demonstrators and local leaders on Friday.

On Truth Social, he accused protesters of being “highly paid professionals”, adding that Walz and Frey had “totally lost control”.

Later, the Republican president told reporters at the White House that he did not plan to invoke the Insurrection Act and send in troops to quell unrest in Minnesota, after earlier this week suggesting he might do so.

“If I needed it, I’d use it. I don’t think there’s any reason right now to use it,” he said. “It’s very powerful,” he added.

Thousands of ICE officers remain deployed in the state.

Democratic lawmakers travelled to the city for a hearing there and spent Friday condemning federal immigration operations in the state, accusing ICE of reckless and lawless actions.

Ilhan Omar, a congresswoman from Minnesota who has long feuded with Trump, said that ICE was trying to “provoke chaos and fear”.

Adriano Espaillat, a congressman from New York, said ICE had become a “deadly weapon”.

Washington congresswoman Pramila Jayapal said ICE agents should not be allowed to wear masks, or make arrests without warrants, and should be required to have body cameras and name tags.

The Democratic lawmakers also interviewed several residents who alleged they had been shackled and detained by ICE for hours until they could prove they were US citizens.

The BBC has contacted the DHS and ICE for comment.

DHS spokeswoman Tricia McLaughlin told CNN on Friday that if there was “reasonable suspicion” of someone who is “in the vicinity” of a person being detained by a DHS operation, they might be asked to confirm their identity.

She rejected suggestions such tactics could be discriminatory, saying “racial animus has no place in DHS”.

The exiled son of the last Iranian shah (king) has called on the world to help protesters topple Iran’s government, saying he is confident “the Islamic Republic will fall – not if, but when”.

Reza Pahlavi, a US-based opposition leader, asked the world to target Iran’s Revolutionary Guard leadership, which he said would “facilitate our task and prevent more loss of life”.

More than 2,500 protesters have been killed, according to a human rights group, in demonstrations that started over the economy on 28 December and turned into calls for the end of the rule of Iran’s Supreme Leader Ali Hosseini Khamenei.

The Iranian government has called the protests “riots” backed by Iran’s enemies.

Pahlavi has emerged as a prominent figure in Iran’s fragmented opposition and has previously urged Iranians to escalate their protests.

But protesters have been met with deadly force by authorities, masked by a near total shutdown of the internet and communication services.

Speaking on Friday at a news conference in Washington, Pahlavi claimed that sections of Iran’s security apparatus had refused to take part in the crackdown and that the Iranian authorities had brought in fighters from foreign militias to quell the protests.

He urged the world to target Iran’s Revolutionary Guards, and command and control infrastructure, calling for a “surgical strike”.

He also asked global powers to deliver economic pressure, expel Iranian diplomats, demand the release of all political prisoners, and deploy satellite internet Starlink and other secure communications to allow connectivity in Iran.

“The Iranian people are taking decisive action on the ground. It is now time for the international community to join them fully,” he said.

“With or without the world’s help, the regime will fall. It will fall sooner and more lives will be saved if the world turns its words into action.”

He declined to speak about reports that he had held discussions with senior US officials, but said: “I believe that President Trump is a man of his word and, ultimately, he will stand with the Iranian people.”

Trump has previously warned Iran’s government against killing protesters and told CBS News, the BBC’s US media partner, that the US would take “very strong action” against Iran if it executed protesters.

He later said he had been told “the killing has stopped” – but did not rule out military action against the country.

Iran’s parliament speaker had warned that if the US attacked, both Israel and US military and shipping centres in the region would become legitimate targets.

The US and UK have reduced the number of personnel at the Al-Udeid air base in Qatar, with officials telling CBS News it was a “precautionary measure”.

On Friday, Pahlavi also vowed to return to Iran and laid out a plan for creating a new constitution in the country.

Asked about future leadership in Iran, he said: “It’s for the Iranian people to decide.”

He said he believes he can lead and has the Iranian people’s support: “I am trying to help them liberate themselves,” he said.

Pahlavi said he supported a governing programme based on the principles of Iran’s territorial integrity, a separation of religion and state, individual liberties and the right of the Iranian people to decide on the form of democratic government they want.

Pahlavi’s father, the last shah of Iran, was overthrown in an Islamic revolution in 1979 and a devout Shia Muslim regime took over.

The current wave of protests began after shopkeepers in Iran’s capital Tehran went on strike over the rising cost of living and the depreciating value of the currency.

They quickly spread across the country and turned against Iran’s clerical establishment, particularly Khamenei. The slogans chanted by demonstrators have included “Death to the dictator” and “Seyyed Ali [Khamenei] will be toppled this year”.

According to the US-based Human Rights Activists News Agency (HRANA), at least 2,595 protesters have been killed since the unrest began, as well as 17 children, 164 people affiliated with the security forces or government, and 21 uninvolved civilians.

It reports that another 22,104 protesters have been arrested.

The Iranian government has imposed an internet blackout on the country since 8 January, with authorities stepping up their crackdown on protests.

The BBC and most other international news organisations are also unable to report from inside Iran, making obtaining and verifying information difficult.

Residents in four cities – Tehran, Karaj, Isfahan and Sanandaj – told the BBC on Friday there were no protests taking place. Security forces were still present on the streets and in public squares, some said.