A deer that was found dead in San Mateo County's La Honda area Monday morning appears to have been attacked by a mountain lion, county officials said.

The deer was found at about 6 a.m. at Entrada Way and Ventura Avenue.

Authorities believe the deer was killed by a mountain lion, but none were spotted in the area Monday morning.

Residents are advised not to approach mountain lions, and to try to appear large and make noise if one is nearby. The cats are most active at dawn, dusk and at night.

For more information about mountain lions, visit www.keepmewild.org.