Police located two vehicles they believe were involved in the shooting. Officers discovered a pound of marijuana in one of the vehicles and took the driver into custody.
Three men, ages 22, 33 and 34, and an 18-year-old woman were standing outside Max’s Steaks at around 9:45 p.m. Wednesday when a gunman opened fire, Philadelphia Police Department spokesperson Officer Eric McLaurin told Fox News.
Police responded to a 911 call but found no victims. Two of the victims later arrived at Temple University Hospital in private vehicles, and the remaining two victims walked to the hospital, police said.
Two of the men were in critical condition: The 22-year-old was shot four times in the lower back, and the 34-year old was shot once in the abdomen, according to police.
The woman was shot in both legs, but she and the third male victim were in stable condition.
Police located a semi-automatic handgun in the street and three spent casings, but there was no blood on the ground. The "lack of ballistic evidence" has led police to speculate that the shooter may have been in a vehicle, The Philadelphia Inquirer reported.
No cause for the shooting has been determined.