Massachusetts August 23, 2018 7:26 pm Measles Warning at Lahey Hospital Lahey Hospital in Burlington, Massachusetts, is warning the public about exposure to measles. US & World Videos 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 10:42 Multiple people arrested as police clear campus encampments