(KRON) — Five people were rescued from a ravine on Monday night after two Jeeps fell about 300 feet, the California Highway Patrol said. Two victims died and three were injured.

CHP said the first Jeep was driving on a dirt road at the Happy Hills Hunting Club in rural Sonoma County when it crashed down into the ravine. A second Jeep attempted to help the first, but it also overturned down the embankment.

The 32-year-old man driving the first Jeep and a boy riding in the vehicle were killed. A 49-year-old man driving the second Jeep and two children passengers were injured. The driver has life-threatening injuries and the children have non-life-threatening injuries, CHP said.

The area of the crash scene was difficult to access, forcing firefighters to use ATVs to get to the scene.

The helicopter had just 10 minutes to complete the rescue operation due to fog in the area, CHP said.

The helicopter arrived at Providence Santa Rosa Memorial Hospital at 8:29 p.m. Another victim was taken to John Muir Medical Center in Walnut Creek.

Bay City News contributed to this story.