The risk of a partial government shutdown at the end of January grew more likely Saturday after Senate Democrats vowed to block a funding package over a fatal Minneapolis shooting involving federal law enforcement authorities.

Senate Democratic Leader Chuck Schumer (N.Y.) on Saturday evening said that Democrats will block a major government funding package if it includes money for the Department of Homeland Security (DHS), calling the actions of Immigration and Customs Enforcement (ICE) officers and Border Patrol agents in Minneapolis “appalling.”

“What’s happening in Minnesota is appalling — and unacceptable in any American city,” Schumer said in a statement.