CROCKETT (CBS SF) -- A crash that reportedly came at the end of a police chase in Crockett has shut down westbound lanes of I-80 at the west end of the Carquinez Bridge, according to authorities.

Shortly before 7:30 p.m., CHP issued a severe traffic alert on westbound I-80 at Pomona Street in Crockett due to police activity. Initially the two left westbound lanes were blocked.

According to the KCBS Traffic Twitter account, the incident was a crash that occurred at around 7:15 p.m., ending of a police pursuit.

A short time later, one of the left westbound lanes had reopened. Traffic was also slow moving in the eastbound direction.

Shortly before 8 p.m., all lanes through the area were reopened.

No further details about the crash were immediately available.