The FBI has received information that U.S. Armed Forces recruiting facilities could potentially be the target of a terrorist attack, sources familiar with the threat told FOX News Friday.

However, the threat information is uncorroborated and unsubstantiated, one law enforcement official warned.

The FBI (search) received intelligence indicating that these recruiting centers could be at risk of a terrorist attack, the sources said.

The source also said the threat information was given to an Armed Forces official, who in turn notified recruiting centers nationwide. The centers are taking appropriate measures to handle this threat.

FOX News' Anna Stolley contributed to this report.