Butler County Water Rescue Team 300 continues to search Oneida Valley Reservoir in Oakland Township on Thursday for possible occupants of an SUV that was found in the water at 4:21 a.m.Nathan Bottiger/Butler Eagle

Emergency crews responded to a vehicle found in the Oneida Valley Reservoir at 4:21 a.m. Thursday in Oakland Township.

Firefighters at the scene said they found a SUV mostly submerged in the water.

Members of Butler County Water Rescue Team 300 entered the water and used equipment to tear open the driver’s side door. They found no one inside.

State police said the vehicle was driving south when it left the road and plunged into the water.

Police are continuing to investigate the scene while the water rescue crews search the water for any possible occupants of the vehicle.

Oneida Valley Road was close for about four hours between Hoon and Hohn roads and has reopened to one lane traffic.

Emergency workers pull an SUV from the Oneida Valley Reservoir Thursday morning. State police and members of the Butler County Water Rescue Team 300 continue to investigate the scene in Oakland Township. Photo by the Oneida Valley Volunteer Fire Department