Chemical Weapons Team in Syria Kept From Alleged Attack Site

Douma, Syria (AP) -- Syrian and Russian authorities prevented independent investigators from going to the scene of a suspected chemical attack, the head of the chemical watchdog group said Monday, blocking international efforts to establish what happened and who was to blame.

The U.S. and France say they have evidence that poison gas was used in the April 7 attack in the opposition-held town of Douma, killing dozens of people, and that Syrian President Bashar Assad's military was behind it.