UPDATE: All lanes have reopened on state Highway 4 after firefighters doused four small brush fires near Concord this morning, according to a fire official and the California Highway Patrol.
CONCORD (KRON) — Three or four brush fires broke out Monday morning along Highway 4 near Concord, according to a fire dispatcher.
Crews responded to the fires around 9:55 a.m. in the area of Willow Pass Road and Highway 4, and have since contained 3 of the fires.
Witnesses calling the California Highway Patrol reported heavy smoke from the fire making it difficult to see the road.
A Sig-alert was issued at 10:27 a.m. for the two right-hand lanes of Highway 4, according to the CHP.
Firefighters are working to extinguish the last fire, which should be out shortly.