World leaders expressed outrage over the attack on a French magazine office in Paris that killed at least 12 people, with several countries calling emergency meetings of anti-terrorism officials to review security.
Witnesses said that two hooded people entered the offices of the weekly satirical magazine Charlie Hebdo, shooting at random and at least one shouting "Allahu Akbar" or "God is great" in Arabic.
"I strongly condemn the horrific shooting," President Barack Obama said in White House statement. "France is America's oldest ally, and has stood shoulder to shoulder with the United States in the fight against terrorists who threaten our shared security and the world."