A masked gunman has killed at least two people at a shopping mall near Portland in the US state of Oregon.
A young woman was also critically injured in the incident, during which the gunman shot himself.
The shooting sparked a panic inside the mall, with shoppers streaming out as police and fire crews arrived on the scene.
The identities of the dead and wounded were not immediately released. The gunman was also not identified, and authorities did not release the type of weapon, or weapons, used.
Several witnesses reported to local media that the gunman was brandishing an assault-style rifle and that up to 60 shots were fired at the Clackamas Town Center in the Portland suburb of Happy Valley.
Clackamas County Sheriff Craig Roberts said the lone gunman died from a self-inflicted gunshot wound and that law enforcement officers who descended on the scene had not fired a single shot inside the mall.
A single weapon was recovered.
"The mall is supposed to be a place where we can take our families. He took the lives of two people and a young lady is at the hospital fighting for her life right now," Sherriff Roberts said.
The wounded victim was taken by helicopter to a hospital where a spokeswoman said she was in serious condition.
The incident marked the latest in a string of shooting rampages this year that included the killing of 12 people and wounding of 58 others at a midnight screening of "The Dark Knight Rises" film in Colorado.
