A prolonged impasse between US lawmakers over immigration enforcement threatens to ensnare the Department of Homeland Security (DHS) in a partial government shutdown beginning Saturday, following two fatal shootings in Minneapolis.

"For weeks, we've been pushing commonsense reforms," Chuck Schumer, the top Democrat in the Republican-controlled Senate, said ahead of a partial shutdown that would go into effect after midnight on Friday night.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.