Police are investigating a threat to the Shalom Christian Academy in Franklin County.
State police said the threat was made by a 911 caller Saturday night. The caller threatened the school in Guilford Township and people attending a Fannett-Metal basketball game.
More than 400 people were evacuated from the gym while troopers searched the building. Nothing suspicious was found.
The FBI is involved in the investigation.
Anyone with information should call Pennsylvania Crime Stoppers at 1-800-4PA-TIPS.