WASHINGTON — Attorney General Eric Holder says investigators at this point don't have "any credible information" to determine which terrorist group was responsible for the attacks in Paris.
Al-Qaida's branch in Yemen has said it directed the attack by two brothers against a newspaper that lampooned Islam and other religions.
And the gunman in the hostage-taking at a kosher market is seen in a new video pledging allegiance to the Islamic State group.
Holder says both terrorist groups pose a threat to the United States and its allies.
The attorney general spoke in a series of interviews with the Sunday morning news shows in Washington. Holder was in Paris, where he was attending a meeting with on fighting terrorism.