MBTA August 3, 2021 7:49 pm Green Line Collision: NTSB Continues Investigating MBTA Crash After a crash on the Green Line of the MBTA left dozens of people injured, federal investigators say one of the trains involved was going about three times the speed limit. US & World Videos 1:59 Highly anticipated witness in Karen Read trial to take stand 2:38 Our region sees some sun today, with mild temperatures 1:27 Shia LaBeouf's first red carpet appearance in 4 years 3:16 Weather forecast: Highs in 60s 4:04 Student violence impacts schools across Mass.