U.S. immigration agents shot and killed a U.S. citizen in Minneapolis on Saturday, officials said, sparking fierce protests and condemnations from local leaders in the second such incident this month, Reuters reported. 

The Department of Homeland Security characterized the incident as an attack, saying a Border Patrol agent fired in self-defense after a man approached with a handgun and violently resisted attempts to disarm him.

But bystander videos from the scene verified by Reuters showed the man, identified as 37-year-old Alex Pretti, holding a phone in his hand, not a gun, as he tries to help other protesters who have been pushed to the ground by agents, according to Reuters.