PITTSBURG (KRON) — A crash on Highway 4 in Pittsburg early Wednesday morning has prompted a sig-alert.

The California Highway Patrol said the crash was first is reported at about at 5:49 a.m. on westbound state Highway 4 near the Loveridge Road onramp.

There are injuries being reported. The condition of the crash victims is unknown at this time.

Three lanes have been blocked due to the crash and debris in the lanes, and the CHP has issued a Sig-alert.

Stay with KRON 4 News for more on this developing.