UPDATE: Pedestrian Death on Caltrain Tracks in Sunnyvale

Caltrain resumed full service in both directions following a fatal collision in Sunnyvale and says special service for 49ers fans at the Bayshore station should not be affected.

Northbound tracks were reopened to regular traffic at 7 p.m., and southbound trains were running on schedule, Caltrain spokeswoman Christine Dunn said. Caltrain passengers experienced delays Sunday evening in the aftermath of a collision that killed a pedestrian in Sunnyvale.

The northbound Caltrain #439 struck and killed an adult male pedestrian at 4:15 p.m. on the train tracks at Sunnyvale Avenue in Sunnyvale, just south of the station, according to Caltrain spokeswoman Christine Dunn.       

The cause of the collision remains under investigation, but Dunn said it appears the man may have deliberately stepped in front of the train.

There were no injuries to the train's passengers or crew. The passengers were able to board a special northbound train at 5:26 p.m. that ran express to Redwood City and then made all northbound stops.

Southbound tracks were reopened at 5:05 p.m. As of around 6 p.m. northbound trains were running around 20 minutes late and southbound trains around 8 minutes late.

This is the second death on the Caltrain tracks this year. Last year there were 16 fatalities, Dunn said.

-- Bay City News wire