So far the victims appear to include The New York Times , Twitter, and The Huffington Post UK . Developing.

The New York Times website went down around 3 p.m. Tuesday afternoon, which The Times' Facebook page explained was due to a "malicious external attack."

In April, The Syrian Electronic Army hacked the Associated Press Twitter account, announcing false explosions at the White House.

The group has also hacked the Washington Post, National Public Radio, CBS News, and the Onion.