The Syrian Electronic Army has multiple domains seized by its domain registration firm. The group’s was able to compromise the multiple Associated Press (AP) Twitter feeds, then using them to issue bogus messages, including the following alert on April 23 i.e. “.” The White House confirmed that the president was unharmed, that there had been no explosions and that the FBI was investigating the hoax tweets. Most recently, the group grabbed international attention after commandeering the websites of the New York Times, Washington Post and this week the recruitment website for US Marine Corps.
Source: https://thehackernews.com/2013/09/fbi-cyber-division-put-syrian.html

