The U.S. military said Sunday it has new evidence about civilian casualties from an American attack that Afghanistan says killed scores of women and children and it is sending a senior officer to the country to review its initial finding that no more than seven civilians died.

The military did not say what new information had emerged. But Afghan and Western officials say Afghanistan's intelligence agency and the U.N. both have video of the aftermath of the Aug. 22 airstrikes on Azizabad village showing dozens of dead women and children.