FoxNews.com's Twitter feed for political news, FoxNewspolitics, was hacked early Monday morning.
Hackers sent out several malicious and false tweets claiming that President Obama had been assassinated. Those reports were incorrect, of course, and the president was spending the July 4 holiday with his family at the White House.
The tweets have been removed from the feed.
FoxNews.com alerted the U.S. Secret Service, which will investigate the hacking and do "appropriate follow up," spokesman George Ogilvie said.
Jeff Misenti, vice president and general manager of Fox News Digital, said FoxNews.com was working with Twitter to address the situation as quickly as possible.
"We will be requesting a detailed investigation from Twitter about how this occurred, and measures to prevent future unauthorized access into FoxNews.com accounts," Misenti said.
FoxNews.com regrets any distress the false tweets may have created.