US attorney general: No credible information now to determine Paris attack responsibility

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.