A Border Patrol agent and two New York National Guard Soldiers have been identified as the three people killed in a U.S. military helicopter crash in Texas Friday along the U.S.-Mexico border.

New York State Trooper John M. Grassia III and New York National Guard helicopter pilot Casey Frankoski had already been identified as among the deceased by local agencies on Saturday, while Homeland Security Secretary Alejandro Mayorkas on Sunday identified the third person killed in Friday's crash as Border Patrol Agent Chris Luna. 

"We are devastated by the tragic death of Border Patrol Agent Chris Luna, a heroic public servant who lost his life Friday in a helicopter crash while on a Border Patrol mission in Texas. Two National Guardsmen were also killed, and one National Guardsman was seriously injured," Mayorkas said.

Trooper Grassia, 30, was killed in the same crash while serving with the National Guard, the New York State Troopers Police Benevolent Association said in a Facebook post on Saturday, sending thoughts and prayers to Grassia's family, friends and coworkers. 

"Trooper Grassia, who was dedicated to serving and protecting not only the citizens of New York State but also the citizens of the entire United States, will be remembered for his ultimate sacrifice," the post said. "Trooper Grassia joined the New York State Police in April 2022 and was most recently assigned to Troop G. Funeral arrangements are pending."