POTTSTOWN, Pa., (CBS) – Crews rescued a driver trapped inside of a vehicle partially submerged in the Schuylkill River Monday night.

The incident was reported at about 10:15 p.m. at Industrial Highway and South Keim Street in Pottstown.

Officials say the man was pulled from the vehicle with a head injury.

The car went down a 20 foot embankment into the water.  Initially, police believed black ice may have played a role in the accident.

After further investigation, police said Tuesday that speed and weather were not factors in the accident.

The accident remains under investigation.

Stay with CBSPhilly.com for the latest on this developing story.