Firefighters were able to knock down a two-alarm blaze in Portola Valley on Saturday night, San Mateo County fire officials said.

Crews responded to a report of a structure fire in the 400 block of Cervantes Road at about 10 p.m., fire officials said.

When crews arrived, a second alarm was called, according to fire officials.

The fire was knocked down, and placed under control, and crews cleared the scene by 1 a.m. Sunday, officials said.

No injuries were reported.

The cause of the fire has yet to be determined.