UPDATE: Dozens treated for carbon monoxide at ice rink

LAKE DELTON - UPDATE 12/14/14 4:01p.m.

Authorities blame an ice resurfacing machine for a suspected carbon monoxide leak that sent dozens of people to hospitals after a junior hockey game at a Wisconsin rink.

Delton Fire Chief Darren Jorgenson says the carbon monoxide was coming from one of the rink's two propane-fueled resurfacing machines.

Jorgenson says the machine "wasn't fully combusting the propane," and the ventilation system was unable to offset the problem.

Full story: WJFW