A federal immigration officer shot and killed a man Saturday in Minneapolis, drawing hundreds of protesters onto the frigid streets and ratcheting up tensions in a city already shaken by another fatal shooting weeks earlier.

Family members identified the man who was killed as Alex Pretti, a 37-year-old intensive care unit nurse who had protested President Donald Trump's immigration crackdown in his city. After the shooting, an angry crowd gathered and protesters clashed with federal immigration officers, who wielded batons and deployed flash bangs.

Pretti was shot just over a mile from where an Immigration and Customs Enforcement officer shot and killed 37-year-old Renee Good on Jan. 7, sparking widespread protests.