Massive fire knocked down at pallet yard in San Bernardino

SAN BERNARDINO, Calif. -- Firefighters knocked down a massive fire at a pallet yard in San Bernardino Friday morning..

The dramatic blaze was burning in the 1200 block of Mountain View Avenue, the San Bernardino County Fire Department said on Twitter at 4:22 a.m. At least 19 fire engines were on scene, along with a bulldozer and a hand crew, the agency said.

There were no immediate reports of injuries.

The cause of the fire was unknown.