Ryan Louis Mosqueda, 27, armed with a rifle and tactical gear was shot and killed by Border Patrol agents in McAllen, Texas.

"This morning, an individual opened fired at the entrance of the United States Border Patrol sector annex in McAllen, Texas," a representative of the Department of Homeland Security, Tricia McLaughlin, wrote Monday in a statement to Newsmax, which was also posted to DHS's X account. "Both Border Patrol agents and local police helped neutralize the shooter.

"This is an ongoing investigation led by the FBI. More information will be shared as it becomes available."

Federal agents returned fire at Mosqueda, who had an assault rifle and was carrying a utility vest, McAllen Police Chief Victor Rodriguez told reporters Monday morning.

The shooting took place at a Border Patrol facility across the street from McAllen International Airport.

Law enforcement said they found another rifle and more ammunition. Rodriguez said the man’s motive is currently unknown. One officer was injured in the shooting, but Rodriguez said it was unclear if the injury was from shrapnel or a bullet.

"Three federal & TX law enforcement sources tell me an active shooter with a rifle & tactical gear ambushed Border Patrol agents as they arrived at a Border Patrol annex facility in McAllen, TX this morning," a reporter on the ground posted on X with police photos. "Local police and federal agents returned fire, killing him.

"I'm told this was a purposeful ambush/attack against federal agents and a press conference is planned for later this morning. No federal agents injured. I'm told a McAllen police officer may have been shot, but is in stable condition."

Information from The Associated Press was used to compile this breaking news report.