Two police officers were killed in a the border town of McAllen, Texas, Saturday in what authorities have described was an “ambush shooting.”

The Monitor of McAllen, Texas, reported that the gunman killed himself after engaging in a shootout with responding officers.

The murdered McAllen police officers, Edelmiro Garza, 45, and Ismael Chavez, 39, were killed while responding to a domestic disturbance complaint, The Monitor reported.

“We have lost two brave public servants who sought only to keep peace in our City,” McAllen police Chief Victor Rodriguez confirmed via text message Saturday, according to the newspaper.

Gov. Greg Abbott tweeted, “Two of our finest were killed in the line of duty while working to protect residents in their community. I’ve spoken with McAllen Police Chief Victor Rodriguez and offered the full support of the State of Texas. We unite to #BackTheBlue.”

The suspect was Audon Ignacio Camarillo, 23, who was most recently arrested last month on assault charges, The Monitor reported.

“Our prayers and full support are with the valiant men and women of the #CityofMcAllen PD this evening,” the Texas Attorney General’s Office tweeted. “This office will provide any assistance requested in the days ahead. We are grateful for police in McAllen and around this great state.”

The City of McAllen extended “its deepest condolences to the McAllen Police Department and to the families of Officer Edelmiro Garza and Officer Ismael Chavez,” it posted on Facebook in a statement, adding, “Our City is hurting and our hearts and prayers go out to them during this difficult time.”