The driver, Carlos Rodriguez Bobadilla, was among six people injured in Saturday’s crash on a remote desert highway, said California Highway Patrol Officer DeeAnn Goudie. Rodriguez, 36, was recovering from hand fractures at a San Diego hospital.

The arrest was made when officers smelled alcohol on his breath about five hours after the crash, Goudie said.

Results of a blood test were pending.

It is unclear if the driver’s alleged alcohol consumption contributed to the collision, Goudie said, but he was arrested on a misdemeanor and is not being held responsible for the deaths based on evidence collected so far.

Authorities are looking for the driver of a gold Honda Civic who forced Rodriguez off the road when trying to pass the motorcyclists on the undivided two-lane highway east of San Diego.

Rodriguez, of Mexicali, Mexico, swerved his white Dodge Avenger to the right shoulder to avoid the Honda and then overcompensated by swinging left into oncoming traffic, Goudie said. Rodriguez’s speedometer was found stuck at 60 mph (96.5 kph), 5 mph (8 kph) below the speed limit.

“It would have been nice if he had just gone off to the right,” she said. “He would have been stuck in the soft sand.” None of the motorcyclists got the license plate of the Honda driver — described as a man wearing a baseball cap.

No one pursued him, choosing to stay behind to attend to their friends.

“I was the first person on scene that had a uniform on,” Goudie said. “I was being dragged in every direction by frantic people saying, ‘Help this person, help that person.”’ The CHP withheld the names of the five who died, pending notification of next of kin. They included a husband and wife who were on a motorcycle that was the first to be struck.

A man who was driving a motorcycle behind the couple was struck next and died, Goudie said.

Rodriguez turned and hit a third motorcycle, killing a woman who was riding on the back and injuring her husband, Wilson Trayer, 39, of Lakeside, Goudie said.

Trayer’s daughter, Sierra, said her father has been on a life support and was in surgery. He broke his pelvis, ribs, back and jaw.

Trayer’s motorcycle sliced 18 inches (46 centimeters) into the front passenger door of the Dodge that Rodriguez was driving, killing Rodriguez’s companion, a 31-year-old Mexicali woman who owned the car, Goudie said.

One of the injured has been released from the hospital, Goudie said. She didn’t know the condition or prognosis of the others.

The ride was held to mark the 10th anniversary of the Lakeside-based Saddletramps Motorcycle Club, Goudie said.

They had planned to spend the night at the Quechan Casino Resort in Winterhaven, near the Arizona state line.

“They were just going on a nice, leisurely ride in the desert because the weather’s gorgeous now,” she said.

The group met Saturday morning at the Alpine home of its president, James Carl Smith, and went for breakfast at the Golden Acorn Casino off Interstate 8 in Boulevard, Goudie said.

The accident occurred about 1 p.m. Saturday on state Route 98 near the hamlet of Ocotillo, about 80 miles (130 kilometers) east of San Diego. The curvy road, which hugs the Mexican border, links Mexicali to Interstate 8 and is used by motorists from Southern Californians and Mexico’s Baja California state.