The Texas Department of Public Safety (DPS) confirmed that border agents were fired upon from the Mexican side of the border. On Monday, Texas DPS Lieutenant Olivarez confirmed that shots were fired from inside Mexico toward a group of Border Patrol agents on Fronton Island.

According to reports, there were no injuries in the incident near Fronton Island, an uninhabited island in Starr County, Texas.

A gunshot was fired from the southern side of the U.S.-Mexico border toward U.S. Border Patrol agents, and multiple shots were returned by U.S. authorities into Mexico, according to federal and state law enforcement officials sources with firsthand knowledge of the situation.