(CNN) — Torrential rain and rapid mudslides have shut down a Southern California town, stranding thousands of people and trapping 500 children and adults at a church camp.

“Most roads are impassable due to mudflows” in Forest Falls, said San Bernardino Fire Capt. Kyle Hauducoeur. Even a local fire station had to be evacuated.

Authorities have made contact with the Forest Home camp, where the 500 visitors were staying, and said everyone is safe — but the camp was still trapped behind mudflow late Sunday.

Crews used bulldozers and other heavy equipment to try to reach the campers, Hauducoeur said.

“There is no other way out of there. It’s basically like a dead-end slot canyon,” he said.

Mudslides cut off California town

So far, there have been no reports of injuries or missing residents in Forest Falls, population 2,000. Hauducoeur said the damage to homes due to flooding has not been severe.

But elsewhere in San Bernardino County, one person was found dead inside a vehicle that was swept off the road and into a creek by floodwater, county fire department spokesman Chris Prater said. Read More.