An unknown man called the Sunrise assisted living facility at 6:50 a.m. on Tuesday and mentioned a bomb, before ending the call, West Whiteland police said.
West Whiteland officers and two K-9 units with the Chester County Sheriff's Office searched around the facility but didn't find anything suspicious.
The caller reportedly sounded angry, talked very fast, and did not make any specific threats, police said.
Police assure there is no known threat.
Anyone with information is asked to contact Det. Scott Pezick at 610-363-0200 ext. 1017 or spezick@westwhiteland.org.
Click here to follow Daily Voice Drexel Hill-Upper Darby and receive free news updates.