PUEBLO, Colo. -

The Pueblo Police Department warns that the Arkansas River is running dangerously high as the search continues for the remains of a man who is believed to have drowned in the river on Monday (6/2/14).

Police say Christopher Lynn Frazier, 23, fell off of a tube into the rushing water at 4:25 p.m.

Officers spotted Frazier but were unable to catch up to him because the river was flowing so fast.

Frazier was last seen going over the spillway near Santa Fe Avenue. Police say he appeared to be unresponsive at that time.

Police say that as of 8 a.m. Tuesday, the water was running at 4,900 cubic feet per second. The typical level for this time of year is 1,000 cubic feet per second or less.

Pueblo police say you should stay out of the river until it goes down.