Article here. Excerpt:

'A 3-month-old child was taken to a hospital in critical condition after his mother attempted to circumcise him at home, police said.

Portland police Sgt. Pete Simpson said officers arrived at a home at Northeast 127th Avenue and Burnside Street at about 2 a.m. Sunday to assist medics after a call of an injured child.

Police said they learned the mother had attempted to perform a medical procedure on the infant.

...

No arrests have been made at this point, Simpson said.'