SEATTLE (Reuters) - A gunman walked onto a dance floor at a Seattle area casino on Sunday and opened fire on his estranged wife and her companion, injuring seven people, police said.
The 42-year-old suspect's wife and two other victims were listed in critical condition at a Seattle hospital following the 1:30 a.m. shooting at Muckleshoot Casino in nearby Auburn, Auburn Police Cmdr. Mike Hirman said.
Four others were listed in stable condition at Valley hospital in Renton, Washington.
The accused gunman was tackled at the scene by casino security and taken into custody by an off-duty Auburn police officer who was working there, Hirman said.
He was not immediately identified by police, who said the motive for the shooting was still under investigation by detectives.
"We know they were estranged and we know he went up there and fired rounds into his wife and into his wife's companion," Hirman said.
The suspect, who was being held at King County Jail, had spoken to detectives but that the content of those conversations had not been released because they were part of the investigation, Hirman said
He is accused of walking into the Club Galaxy lounge at the casino and firing on his wife with a handgun as she danced with her male companion.
Also injured in the shooting were two of her sisters. None of the victims were identified by authorities.
The shooting suspect faces an initial court hearing on Monday, Hirman said.
(Writing and reporting by Dan Whitcomb, editing by Ellen Wulfhorst)