Two gunmen carjacked an Uber driver when he stopped to pick up two passengers on the South Side early Tuesday, police said.

Roy E. Smith, 63, pulled over at 31st Street and Lake Shore Drive around 2:10 a.m. when a white vehicle stopped in front of him, police said.

Two men got out and pointed handguns at Smith and the two passengers he was picking up, police said. One of the attackers approached Smith and told him to get out of his car, a 2015 Ford Fusion, police said. The second attacker robbed the two passengers and told them to get out too.

The first attacker got inside Smith's car and pulled away while one of the passengers was still trying to get out of the car, police said. The 30-year-old man suffered a small cut to his head and was taken to Mercy Hospital and Medical Center in good condition.

The suspects sped off in both cars, police said.

Smith said the gunmen also stole his checkbook and his phone and at least one wallet from the passengers. The carjackers let Smith take his medicine from the car before getting out, he said.

Smith said the attackers were in their late teens or early 20s. “To tell you the truth, I was pretty much just looking at the gun,” he said. “I didn’t take the time to see what they were wearing or what they looked like.”

Smith said he has been an Uber driver since October and drives all over the city. “I’m normally very watchful,” he said. “I wouldn’t put the car in park. I put the flashes on. I have my foot on the gas pedal, so I could easily get out if I need to.

Warren Skalski / for the Chicago Tribune Roy E. Smith, of Country Club Hills, a part-time Uber driver, was the victim of a carjacking early Aug. 2, 2016, near 31st and Dearborn streets in Chicago's Bronzeville neighborhood. The carjackers also robbed Smith's two passengers. Roy E. Smith, of Country Club Hills, a part-time Uber driver, was the victim of a carjacking early Aug. 2, 2016, near 31st and Dearborn streets in Chicago's Bronzeville neighborhood. The carjackers also robbed Smith's two passengers. (Warren Skalski / for the Chicago Tribune) (Warren Skalski / for the Chicago Tribune)

“This is one of those things that you know happen," he said. "But you never think will happen to you."