The Brief An MTA work train caught fire at the Astor Place subway station, injuring at least 14 people and causing temporary service suspensions. The FDNY said the fire broke out on a work train being used to vacuum the tracks at around 2:15 a.m. Tuesday. An early-morning fire at the Astor Place subway station in Manhattan left multiple people injured and temporarily suspended service on the 4 and 6 lines, which resumed with significant delays. Officials said it was a work train being used to vacuum the tracks. "Sounded like something exploded"What they're saying:One commuter waiting on the platform described the scene as the Astor Place station started filling with smoke.