Two children from Chelsea are in critical condition after falling at least 15 feet from a Ferris wheel at a community fair, authorities said. 

A fall from the carriage of a Ferris wheel "dumped" two boys, witnesses said. The two are in critical condition at C.S. Mott Children's Hospital.

The incident was reported around 8:20 p.m. Thursday evening. Witnesses said two carriages became entwined, causing the one with the boys to tip forward as the Ferris wheel rotated.

There was no comment from fair organizers.