Updated

A fire has broken out at the historic Pennsylvania arena where Wilt Chamberlain scored an NBA record 100 points in a game.

Officials say the fire started Thursday afternoon at the west end of the 75-year-old Hersheypark Arena in Derry Township.

The arena is owned by Hershey Entertainment & Resorts, founded when Milton S. Hershey separated his chocolate manufacturing from his other businesses.

Hershey spokesman Jim Shellenberger says workers were putting a new roof on the domed building, but it's unclear if the work had anything to do with the fire. He says the roof isn't in danger of collapse.

Workers have left the arena. No injuries are reported.

The arena opened in 1936 and is primarily used for youth hockey. Chamberlain scored 100 points there for the Philadelphia Warriors against the New York Knicks on March 2, 1962.