Words of condolence and support came pouring in from the Bay State a day after the nation began to learn the details of an apparent sniper ambush and killing of two Idaho firefighters.

First responders were called to the scene of a brush fire near Coeur d’Alene, Idaho, on Sunday afternoon, when they were apparently ambushed by an armed man. According to officials with the Kootenai County Sheriff’s Office, two firefighters were killed and a third seriously injured by the alleged gunman, who was found dead at the scene.

“Our thoughts tonight are with the firefighters, law enforcement, and other public safety personnel who were ambushed by gunfire while fighting a brush fire near Coeur d’Alene, Idaho,” the Massachusetts Department of Fire Services said via social media.

The Boston Fire Department offered its condolences to the victims’ families on behalf of Commissioner Paul Burke and the entire department, noting their colleagues were “killed senselessly while doing their job” before adding their prayers for the recovery of the third injured man.

“Firefighters accept the risks that come with fighting fires and all the other emergencies for which we respond. Sadly, this tragedy reminds us of another element of risk that all first responders now face as they do their job protecting the public they serve,” the department said via social media.

The International Association of Fire Fighters, which held their national convention in Boston last year, said that the murdered pair were both members of the union.

“While responding to a fire earlier today in Coeur d’Alene, Idaho, IAFF members were ambushed in a heinous act of violence. Two of our brothers were killed by a sniper, and a third brother remains in surgery,” the union said via social media.

“Please keep them, their families, and law enforcement in your prayers,” they added.

U.S. Sen. Ed Markey, who is a member of the Congressional Fire Services Caucus, told the Herald on Monday that he’s horrified by this “senseless attack on firefighters.”

“My heart goes out to the victims, their families, and the community as they grieve this tragic loss. Firefighters make immeasurable contributions to keep our communities safe, and this type of targeted violence against them is unacceptable,” he said.

Kootenai County Sheriff Bob Norris said Sunday that law enforcement currently believes that the gunman intentionally set a fire to lure first responders into the woods and then began to shoot at arriving crews.

“These firefighters did not have a chance,” Norris said at a press conference following the attack.

The deceased suspect has been identified as 20-year-old Wess Roley, a law enforcement official told The Associated Press on Monday.