US Customs & Border Protection Officers (Photo: Instagram/customsborder)

A viral video from Facebook shows an undocumented immigrant being shot to death by a Border Patrol officer.

A viral video from Facebook shows an undocumented immigrant being shot to death by a Border Patrol officer.

On May 23, a U.S. Customs and Border Protection officer in Rio Bravo, Texas, which shares a border with Mexico, answered a call of illegal activity near a channel, and saw a group of suspected undocumented immigrants.

The Border Patrol agent tried to arrest the group but was attacked by several people with blunt objects. The agent then fired one shot from his gun, killing one person.

Currently, neither the name of the agent nor victim have been released. But a video posted on Facebook shows that the deceased victim was a woman.

In the video, a female can be heard screaming at an officer, saying, “Why are you mistreating them? Why are you mistreating them? Why did you [shoot] at the girl? You killed her. He killed the girl. She’s laying there, and she’s dead.”

According to reports, responding agents arrested three undocumented immigrants. At this time, Texas Rangers and the FBI are investigating the case.