CONCORD -- Five people, including one person who had to be freed with a hydraulic rescue tools, emerged from a head-on crash with only minor injuries, police said Tuesday.

The wreck happened on Bailey Road near the Naval Weapons Station gate around 5:35 p.m., police said. Officers responding to the wreck found that a van driving toward Concord collided with a Ford F550 work truck that was driving toward Highway 4, and that one of the people in the van was trapped, Heinemann said.

Contra Costa Fire Protection District rescue crews were able to remove the trapped person, authorities said.

That person, along with one other person in the van and three in the truck were taken via ambulance to John Muir Medical Center in Walnut Creek, and all of their injuries were found to be minor, police said.

Bailey Road was shut down for approximately two hours, as the road was cleared of debris and both vehicles towed, police said. Investigators have not determined the cause of the collision or whether drinking or drugs may have been involved, police said.

Contact Rick Hurd at 925-945-4789 and follow him at Twitter.com/3rdERH.