The King County Sheriff's Office (KCSO) is investigating a shooting that happened at a casino, Saturday just before 11 p.m.

Deputies responded to the Roxbury Lanes Casino located in the 2800 block of SW Roxbury Street near White Center for reports of multiple people shot. Police say that an unknown person came in the casino and began shooting.

Authorities at the scene told a KOMO News crew three people had been shot, but the extent of their injuries were unknown. Officials at Harborview Medical Center confirmed that it was two men and a woman that were shot.

No information about any suspects has been released at this time, but police say the suspect is still at large. KCSO Deputies from White Center, Burien, Sea Tac, Metro, Sound Transit Divisions, and K-9 officer also responded to the scene to assist in the investigation.

This is a developing story. Check back for updates.