NEW YORK (AP) — New York City Police Commissioner Raymond Kelly says his department will look into a complaint that an officer wrongly used pepper spray at a demonstration against Wall Street last week.Kelly says internal affairs will investigate the claim made by a 25-year-old woman and others.Video from Saturday's Union Square incident shows an officer blasting a cluster of women with pepper spray. Two of the women crumple on the sidewalk in pain. One screams. The officer's white shirt indicates a rank of lieutenant or above.Kelly says the video leaves out tumultuous conduct by protesters who illegally tried to block streets.About 80 people were arrested as the "Occupy Wall Street" demonstrators marched through lower Manhattan.The women have also filed a complaint with the civilian complaint review board.