The Chillicothe Gazette reports that a curtain caught fire Thursday night in the theater that dates to the 1850s.

Aaron Crisler, spokesman for Nashville, Tenn.-based gospel singers The Nelons, says the group had just begun its first song when a fire alarm sounded.

Crisler says Kelly Nelon Clark, her husband Jason Clark and daughter Amber Nelon Thompson credited members of the group Beyond the Ashes for helping them to escape. He says the three members of The Nelons, three singers from Beyond the Ashes and a member of their management team were treated at a hospital for smoke inhalation and released.

The Majestic Theater has hosted many legendary entertainers, including Laurel and Hardy, Milton Berle and Sophie Tucker.

The cause of the fire is under investigation.