UPDATE: The man died; another man now faces a manslaughter charge for allegedly pushing him into the river.
Divers from BFD and State Police and firefighters from Boston and Cambridge went into the Charles near the Mass. Ave. bridge shortly after 5 p.m. on a report that somebody jumped or fell into the river. Around 5:27 p.m., firefighters found the man and got him out of the water. He was turned over to EMS for preparation to be transported to a local hospital.