A 9-year-old girl who was shot in the head around 5 p.m. Sunday afternoon in Oregon City died shortly after, according to

.

Police say the initial report was that the mother's boyfriend was cleaning a handgun inside the house when it accidentally discharged. The bullet shot through the wall of the house, located near 12th and Division streets.

Police found the girl in the backyard upon their arrival where she had been playing, reports said.

A LifeFlight helicopter transported the child to

in Portland, where she was pronounced dead shortly after her arrival.

The man who was cleaning the gun is cooperating with police. There's no information at this time on whether any charges will be filed, police said. The investigation is continuing.

Because of family notifications in process and the nature of the complicated investigation, police said late Sunday were not immediately releasing any names until Monday.

-- Michael Bamesberger