Several injured after SEPTA trolley crash in Norristown

8 injured in Norristown SEPTA train crash

The NTSB is investigating after a SEPTA train collision left eight passengers injured in Norristown Sunday.

NORRISTOWN, Pa. - A crash involving a SEPTA trolley is causing delays on Sunday after officials say at least eight people were injured.

What we know:

A SEPTA train incident was reported at the Norristown Transit Center around 11 a.m.

Officials say a trolley hit the bumper at the end of the tracks.

Eight people were injured. Of those hurt, three people sustained minor injuries and one person was airlifted and is in critical condition. 

SEPTA said to expect delays and crowded conditions.

The National Transportation Safety Board (NTSB) is sending a team to investigate the collision.

What we don't know:

The conditions of the others injured have yet to be released, along with the cause of the crash.