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

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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.