LENOIR CITY, Tenn. (AP) - Authorities say one of two workers buried in concrete at a Loudon County construction site has died and the other was taken to a hospital in critical condition.

Police Lt. Mike Tinnel told The Knoxville News Sentinel that a form for a 30-foot wall collapsed during a concrete pour Monday afternoon at the Lenoir City Utilities Board sewage treatment plant.

Deputy Fire Chief Tony Brock said rescue crews used rappelling equipment and baskets to pull the workers from the concrete.

Tinnel said one of the workers later died. Their names aren't being released until families are notified.