At 9:57 pm Thursday, the California Highway Patrol responded to a shooting on westbound Highway 4 at Railroad which caused traffic to be diverted off at Harbor Street through the City of Pittsburg to Bailey Road.
A SIG-Alert was issued for all lanes.
By 12:02 am, Highway 4 was completely opened.
According to sources, there were two gun shot victims with one critical one moderate shot in the right arm.
UPDATE per CHP
This is now the fourth shooting since April 27.