9/11 anniversary September 11, 2024 9:16 am WATCH: Massachusetts 9/11 remembrance ceremony A ceremony was held Wednesday morning at the State House in Boston to mark the 23rd anniversary of the 9/11 terror attacks. US & World Videos 1:51 Fall tourism begins in Massachusetts 1:33 Last bull captured after escape from North Attleboro rodeo 2:30 Boston police investigate shooting in Jamaica Plain 1:45 Salem police outline plans to keep people safe during Halloween season 1:15 More law enforcement discipline comes after Karen Read mistrial