Teen dead, 4 injured in stabbing on Apple River

SOMERSET, Wis. (CBS 58) -- A teenager was killed and four people were critically wounded after they were stabbed while tubing on a busy Wisconsin river.

The sheriff says a 17-year-old boy from Minnesota was taken to the hospital, where he later died.

The four other victims are all believed to have suffered critical injuries.

A 52-year-old man from Minnesota has been taken into custody in connection to the attack.

Investigators have not identified the man's motive.