Vegetation fire causes traffic delay on northbound I-280 near Highway 92

SAN MATEO — A 3-alarm vegetation fire Friday afternoon slowed traffic on northbound Interstate 280, just south of Highway 92.

The fire initially broke out around 3:30 beside the freeway and subsequently spread up a hill near the Crystal Springs exit.

Fire crews are currently engaged in the mop-up phase, however the incident is still having impact on holiday weekend getaway traffic flow.

Fire equipment on the roadway shoulder is obstructing the right lane. As of 4:40 p.m. vehicles were moving past the scene although traffic was backing up.

The cause of the fire remains unknown and no official statement has been issued yet.