A person who either fell or jumped into the outbound Muni track at Civic Center Station this morning has caused a major Muni undergound shut-down affecting service in both directions.

Though our earlier, initial reports, coming via Muni station announcements, indicated a medical emergency at Castro Station, the Chron gets the word of the incident which actually occurred at Civic Center Station at 11:35 a.m. The person either leaped into the outbound track or fell, and has reportedly lost a leg. Forty passengers were kept on board the train while the person was extracted from under the train by emergency personnel.

Alert SF reports all outbound service halted, however the Chron says that service is stopped in both directions currently.

We also had reports of people aboard busses in the Civic Center area who were trapped on board as emergency vehicles and police halted above-ground traffic in the area.

More on this story as it develops.

Update: As of 12:45, Alert SF informs us that all Muni service has resumed.

Update 2: As of 1:05, Alert SF actually corrects itself to say Muni underground service remains suspended in both directions, with bus service filling in.

Update 3: Muni underground service has been restored as of 2:20 p.m., however the shuttle buses will continue to run until everything is going smoothly.

Update 4: We're now hearing that the victim here, a wheelchair-bound man in his 50s or 60s, died from his injuries. We still do not know anything about the man, or whether he fell purposely or accidentally in front of the train. However SFist commenter Axel Grim reports of having been on the scene prior to the incident, and someone saw the man on the tracks, near the dark tunnel entrance, so it would appear he was waiting to be hit, and this sounds like a suicide. [Chron]

Photo: David Lytle