EAST HOUSTON -

An argument at an east Houston gas station ended with two men shot -- one of them accidentally shot himself, police said

The incident happened at a Valero in the 5400 block of Crane shortly after 9 a.m. Thursday.

According to witnesses, a woman and her boyfriend were pumping gas when the woman's ex-boyfriend showed up at the station. There was an argument and the two men got into a fight, officials said. The boyfriend pulled out a gun and shot the ex, police said.

The couple then got back in the car. As they were driving away, the boyfriend accidentally shot himself in the leg, authorities said.

The couple flagged down a METRO police officer, who then called Houston police.

Both men were transported to the hospital with non-life threatening injuries.

Police took the woman in for questioning.