LONG BEACH, Calif. (AP) — Authorities are investigating an incident in which a seemingly unconscious man was dragged off a Los Angeles County Metro light-rail train by another passenger and left on a station platform.

The Long Beach Police Department says Friday it is reviewing video of the Wednesday night incident on a Metro Blue Line train.

Video obtained by FOX11 shows a passenger in a business suit drag the fallen man off the train, returning once to briefly check on him.

A witness told FOX11 the man was suffering seizures, had thrown up on the train before collapsing, and was wearing a medical wristband.

A Metro statement calls the incident very disturbing and facts are being gathered.

Police say they are working with county prosecutors to determine if any criminal negligence occurred.