SAN ANTONIO - A pileup involving multiple vehicles blocked three lanes of traffic on Loop 410 eastbound Wednesday evening.

KENS 5's crew at the scene said a San Antonio Police Department cruiser appears to have been hit from behind.

Rush hour traffic was affected by the incident for more than an hour, and TransGuide cameras captured crews working to clear the crash.

It's not clear whether any injuries were reported.

The crash was cleared around 9 p.m.

More information was not immediately available.