Report: FBI Probes Possible ISIS Hacking of US Websites

A number of U.S. websites were attacked by hackers claiming ties to Islamic State (ISIS) hacked over the weekend, prompting an FBI investigation, NBC News reported late Sunday.

NBC sources said they suspected the hackers were not actually affiliated with the ISIS jihadists.

A picture of the black ISIS flag and the words "hacked by ISIS, we are everywhere," with a phony Facebook address appeared on a number of U.S. sites — ranging from an auto racetrack in Ohio to a condominium complex in New York  — and others in Europe on Saturday and Sunday, NBC said.

Investigators suggested the attacks were hoaxes.

Evan Kohlmann of Flashpoint Intelligence, a global security firm, told NBC that "there are no indications that the individuals behind these latest hacks have any real connection to ISIS."