Southern California -- this just in

Man lying on tracks killed by Metrolink train

A 20-year-old man was killed by a Metrolink train after he lay prone on the track near the Northridge station around 4:35 p.m Thursday, authorities said. 

Police are investigating the incident as a possible suicide, said Officer Andrew Santos of the Los Angeles Police Department's Valley Traffic Division. 

The incident occurred on a section of track between Corbin Avenue and Tampa Avenue that had no pedestrian crossing.  Metrolink spokesman Scott Johnson said the train's 19 passengers were unharmed.  They were stuck on the train for about an hour and a half, at which point a bus arrived to ferry them ahead to the Chatsworth station, Johnson said. 

Trains in both directions were shut down.  Buses carried passengers between the Northridge and Chatsworth stations, Johnson said. 

The tracks will be clear by the morning and no delays are expected, Johnson said.