UPDATE: Crews able to contain multiple fires in San Juan Bautista

UPDATE 7/6/15 6:21p.m.: CAL FIRE is confirming to News Channel 5 that the four spot fires along Highway 101 near San Juan Bautista and Hollister have been contained.

Fire investigators say the cause could be a big rig driving in the area that sparked the fires.

Investigators found pieces of exhaust discharge in each fire location.

UPDATE 7/6/15 4:55 p.m: Crews said there were four fires total in the San Juan Bautista area on Monday. CAL FIRE and North Monterey County Fire are handling the vegetation fires along the rural part of Highway 156.

Crews said the largest fire is about five acres. Eight engines, one bulldozer, three fixed-wing aircraft and one helicopter working to contain grassland fires.

One lane of Highway 156 westbound is closed at The Alameda.

PREVIOUS STORY: CAL FIRE said crews are being sent out to multiple vegetation fires in San Juan Bautista Monday afternoon.

Crews are responding to the area of Highway 156 and Highway 101. According to the California Highway Patrol, one of the fires may be close to homes.

NewsChannel 5 has a crew on the way this story will be updated when more information is available.