San Jose firefighters are responding to a vegetation fire burning near an Interstate 280 on-ramp.

The San Jose Fire Department said crews are on the scene in the 0 block of Duane Street, near the I-280 on-ramp from South First Street.

At last report, the fire had consumed approximately a half-acre. Fire officials stated that no structures are currently threatened.

Authorities are urging the public to avoid the area while firefighters work to contain the blaze.