WASHINGTON, Aug 14 (Reuters) - The United States is considering calling off a major military exercise with Egypt following the killing of scores of people in an assault by Egyptian security forces on a protest camp, a U.S. official said on Wednesday.

The official, who spoke on condition of anonymity, said the possibility of scrapping the biennial "Bright Star" exercise was discussed at a meeting of the so-called "deputies committee," which gathers the number two officials from key U.S. national security agencies. (Reporting By Arshad Mohammed; Editing by Sandra Maler)