SAN BERNARDINO (KRON) — Firefighters are battling a massive fire in San Bernardino Friday morning that started overnight.

The fire broke out at around 4 a.m. in at a pallet yard, according to fire officials.

Officials say the fire is burning in an industrial area of San Bernardino.

At least 19 fire engines are on scene, along with a bulldozer and a hand crew.

There were no immediate reports of injuries.

The cause of the fire was unknown at this time.Stay with KRON4 News for updates