A fight led to a man falling in front of a San Francisco Municipal Railway train and suffering a serious head injury, according to police.
San Francisco police Officer Grace Gatpandan said officers responded around 9 p.m. Sunday to a report of a fight at the Civic Center Muni station platform.
A preliminary investigation revealed the two men were fighting when one man pushed the other into an oncoming Muni train, Gatpandan said.
The man suffered a serious head injury, she said.
A fire dispatcher said the man was able to pull himself off the Muni tracks.
He was transported to San Francisco General Hospital with life-threatening injuries, Gatpandan said.
The second man fled the scene and Gatpandan said the area will be shut down while the investigation continues.