Smoke from a fire at a Graniterock plant could be seen for miles along the peninsula Monday afternoon.
The fire was a 365 Blomquist in Redwood City at Graniterock Peninsula Road Material. It was reported around 2:30 p.m. east of Highway 101. Smoke from the fire could be seen for about an hour Monday afternoon slowing traffic in the area.
People who work near the plant said they heard an explosion and when they walked outside they saw a wall of flames.
Two tanks on the property were fully engulfed at the plant. Fire crews said they were filled with liquid asphalt.
The president of Graniterock told KCBS radio that no one was hurt in the fire and that although the black smoke was visually significant, it wasn't something the public needed to be worried about.
Fire crews said they would remain on the scene of the fire for several hours, but it appeared the fuel source of the fire had burned out by 3:20 p.m.
The search will now be on to find out what caused the initial explosion.
