(CHICAGO) A car was found in a pond after it drove off the road in south suburban Lynwood early Sunday afternoon.

At 12:39 p.m., officers received a call about a vehicle in a pond with occupants inside, according to Cook County sheriff’s spokeswoman Sophia Ansari. It is unclear how many people were inside the vehicle.

The Lynwood Fire Department began a search early Sunday afternoon that was called off about 5 p.m., Ansari said. Rescue crews are expected to resume the search Monday morning.

The cause of the crash is under investigation, authorities said.