Trump administration officials told U.S. Immigration and Customs Enforcement (ICE) officers to suspend most vehicle stops after two deadly shootings, people familiar with the decision said Tuesday.The policy change came a day after an ICE officer shot and killed a Colombian driver in Biddeford, Maine, and a week after another officer shot and killed a motorist in Houston, renewing criticism of the agency's tactics during enforcement operations that were widely condemned last winter after the killings of Alex Pretti and Renee Good in Minnesota.In Florida on Tuesday, a third man in roughly a week died during an encounter with immigration officers. This time, a 28-year-old man was killed after he was hit by a tractor trailer while running from immigration and other federal officers, authorities said. The suspension of vehicle stops allows room for exceptions when executing a criminal warrant or working with partner agencies, according to a person who spoke Tuesday on condition of anonymity to discuss sensitive law enforcement operations.Matthew Felling, a spokesperson for Maine Sen. Angus King, said the senator's office was also told by the U.S. Department of Homeland Security (DHS) that ICE was suspending stops.Protesters gather after Maine ICE shootingHundreds of people protested in Maine on Tuesday over the fatal shooting of Johan Sebastián Durán Guerrero, a 25-year-old Colombian national.DHS said Monday that the officer, "fearing for public safety," shot and killed Durán Guerrero while officers were watching the home of someone they believed was in the U.S. illegally and had a final order of removal from the country.The department said in a post on X that when ICE tried to stop a car driven by someone coming from the home, the vehicle attempted to flee and the officer fired his weapon.WATCH | Anti-ICE protests in Maine:Protests break out in Maine after ICE agents fatally shot manJuly 14|Duration 7:17An ICE agent fatally shot a man in Biddeford, Maine, sparking protests across the state. The U.S. Department of Homeland Security claims the man was using his vehicle as a weapon. It's the second time within a week that a federal immigration officer has killed someone in the United States.That was a shift from how King described the encounter hours earlier, when he said U.S. Homeland Security Secretary Markwayne Mullin told him the officer opened fire after the man tried to use his vehicle as a weapon. King said Mullin told him the officers were trying to serve an arrest warrant, but not for the man who was shot.DHS, which oversees ICE, didn't respond to an email seeking clarity on what led to the shooting.In a scathing post on X, outgoing Colombian President Gustavo Petro called the shooting a targeted killing "at the hands of the U.S. government."Petro, who has openly quarrelled with U.S. President Donald Trump, urged Trump to provide an explanation and accused ICE officers of treating Durán Guerrero as "an inferior being without rights."Protesters in Scarborough, Maine, on Tuesday. (Robert F. Bukaty/The Associated Press)The shooting also sparked outrage in Maine, where hundreds of protesters gathered Tuesday outside an ICE detention centre in Scarborough, just up the coast between Biddeford and Portland."These people are killers and they must leave our state now," organizer Todd Chretien told the crowd.Maine's congressional delegation on Tuesday demanded a "comprehensive, transparent and expedited investigation."Questions surround Maine shootingDurán Guerrero's shooting marked at least the ninth time ICE has used deadly force since Trump began his immigration crackdown.Photos showed bullet holes in Durán Guerrero's car windshield, but the officers involved in the shooting didn't have body cameras, leaving many questions. Among them are how close the officer was to the vehicle when they fired, whether officers told Durán Guerrero to stop and why ICE believed he had put the public in danger. "We are always evaluating our procedures to keep our officers safe and criminals off our streets. We will not disclose or discuss law enforcement tactics," an ICE spokesperson said in a statement.A man argues with a protester in Scarborough, Maine, on Tuesday. (Robert F. Bukaty/The Associated Press)Border Czar Tom Homan told reporters Tuesday that the investigation needs to play out."If officers acted inappropriately or illegally, they'll be held accountable," he said.Maine's attorney general's office, which noted that it is working with federal agencies to investigate, said initial statements suggest the driver was trying to flee in the direction of the officer, whose name hasn't been released and who was placed on leave.The state's other senator, Republican Susan Collins, said Mullin told her that DHS's Office of Inspector General is investigating in co-operation with the FBI.Democrats seeking to unseat Collins in November sought Tuesday to connect her with the public's unease over ICE's methods. Collins later said in a statement that although ICE needs to improve, eliminating the agency would make the nation less safe. Maine Secretary of State Shenna Bellows, who is vying for Collins's seat, called the ICE officers at the shooting "thugs" during a vigil Tuesday evening in Lewiston."That agency is broken and we need to go back to a time where the rule of law united all of us regardless of the politics," she told the crowd.Blood is seen on the pavement near the scene of a shooting involving ICE on Monday, in Biddeford, Maine. (Robert F. Bukaty/The Associated Press)Video shows shooting's aftermathAccording to neighbours and public records, Guerrero lived in an apartment about 46 metres from where his car came to a rest outside an apartment building across the street from a pawnshop and laundromat.Video from a nearby business's security camera obtained by The Associated Press shows a white car slowly approaching an intersection before making several circles. A law enforcement SUV blocked its path and two officers opened the driver's door and dragged out a limp body.It isn't clear from the video when the shots were fired.Motorist fatally shot by ICE agent in MaineICE fatally shoots man during enforcement operation in Houston: DHSDaniel Boucher said he heard a "pop, pop, pop" and ran to the intersection. "His face was bloody. His head was bloody," Boucher said. "I clearly heard the victim say, 'I tried to stop.' "Boucher said the officer who shot Durán Guerrero walked close to him."He looked at me and said, 'He tried to run me over,' or something to that effect," Boucher said. "I don't remember his exact words."Two advocacy groups — the Maine Immigrants' Rights Coalition and Presente! — said Durán Guerrero was authorized to work in the U.S.Neighbours say Durán Guerrero was a friendly and familiar face even though they rarely chatted because he didn't appear to speak English. Sadie Dilboy and Cory Poulin, who own a laundromat near the intersection where the car came to a stop, said they saw Durán Guerrero all the time. Claudia Morton, who often waved to Durán Guerrero, was distraught. "The whole world should be crying," she said Tuesday.Dozens of Durán Guerrero's relatives and neighbours gathered in Bucaramanga, his hometown in northeastern Colombia, to remember him on Tuesday. They stood outside his parents' home, holding candles around a table where a photograph of him rested beside a statue of the Virgin Mary.