Minneapolis Police Chief Brian O’Hara said a 37-year-old man was killed but declined to identify him. He added that information about what led up to the shooting was limited. The man was identified by his parents as Alex Pretti, an intensive care unit nurse.

A person is dead after a shooting in Minneapolis earlier on Saturday involving federal immigration agents from Customs and Border Protection, a U.S. official with knowledge of the incident tells CBS News.

Democrats demanded that federal immigration officers leave Minnesota after a U.S. Border Patrol agent fatally a man in Minneapolis, drawing hundreds of protesters onto the frigid streets and increasing tensions in a city already shaken by another shooting death weeks earlier.

DHS said the shot person fled a traffic stop and attacked a federal officer.