VISTA, Calif. (KGTV) — A possible water main break caused a hillside in Vista to collapse Monday afternoon.

According to the San Diego County Sheriff’s Department, a retaining wall on the 300 block of West Los Angeles Drive just before 1 p.m. High Quality Hot Dipped Galvanized Hinge Joint Field Fence

Video from the scene shows debris from the hillside on top of several vehicles. No injuries were reported.

Authorities have requested the evacuation of a nearby apartment building as a result of the incident.

China Manufacturer For Welded Hot Dipped Galvanized Steel Grating Sky10 flew over the scene Monday. Watch video in the player below: