UPDATE: Scarborough police investigate gunshots in Walmart parking lot
Police continue to investigate the circumstances of Friday night's shooting at a Walmart Supercenter in Scarborough.
The shooting happened around 5:30 Friday evening.
A Scarborough police officer was inside the Walmart investigating a separate incident at the time. He was at the scene in a matter of minutes.
Police say 24-year-old Ryan Townsend of Saco is being treated for a gunshot wound at Maine Medical Center. He's currently in critical condition.
Authorities say they have questioned a man and woman about the incident but they are still trying to find a motive for the shooting.