Voting in Radnor was extended Tuesday for an hour until 9 p.m. after the high school was evacuated due to a bomb threat. But no bomb was found, and no one was hurt.

A Delaware County judge gave voters who would normally have voted at Radnor High School the extra time due to the incident, said Secretary of State Al Schmidt.

The voters affected were in two precincts, Radnor Ward 2, precincts 1 and 2, said Adrienne Marofsky, a spokeswoman for the county. The polling place was relocated to nearby Radnor Elementary School.

Radnor Police Superintendent Chris Flanagan said police were alerted about 6 p.m. by school officials who received the threat via email. Police and the FBI are investigating, although the threat was deemed a hoax.

Bomb-sniffing dogs from the Montgomery County Sheriff’s Office searched the school, said Flanagan.

Swimming and a soccer game were curtailed, he said. Flanagan said police will be at the school Wednesday to monitor the situation. If anyone has any information about the threat, they should call Radnor detectives at (610) 688-5600.