June 24, 2016 1:09 am UK PM to Step Down as Country Votes to Leave EU Prime Minister David Cameron said he will step down after his country voted to leave the European Union. The decision shocked the world and sent stocks plunging. Katherine Creag reports. US & World Videos 0:59 Runaway zebras corralled in Washington state; one still missing 1:40 Charlie Puth reacts to Taylor Swift's ‘The Tortured Poets Department' name-drop 0:26 Kaiser Permanente data breach may have affected millions 2:52 Severe weather kills at least 5 as tornadoes rip through Midwest and South 0:48 World Central Kitchen to resume operations in Gaza