Cause of Friday afternoon vegetation fire along Highway 280 at Freeway 85 under investigation

The interchange ramp from northbound Interstate Highway 280 to northbound state Highway 85 was closed for over 30 minutes Friday afternoon as crews battled a small grass fire on both sides of the interchange, the Santa Clara County Fire Department said.

The report of the fire came in at about 2 p.m. Friday, and crews had the fire - about one acre - out in about 20 minutes, Santa Clara County firefighters said.

No one was injured.

The cause of the fire is under investigation, but not considered suspicious.