Fox 5 SAN DIEGO reports — A woman was hospitalized Saturday after being shot during a marijuana transaction and police were still looking for the shooter Sunday.

It happened around 7:48 p.m. Saturday on Biola Avenue and Alosta Street in Nestor, a community near San Ysidro.

It started when a 20-year-old man placed an ad on social media to sell marijuana, the San Diego Police Department said. A 19-year-old woman and an 18-year-old man responded to the ad and met the victim in his car.

Police said the 18-year-old man took out a gun and hit the victim repeatedly in the head in an attempt to steal the pot. During the time he was hitting the victim, the gun went off twice, striking the female in the left shoulder with a bullet.

The robber got out of the car and ran away.

The woman was taken to a hospital by the victim for non-life-threatening injuries.