A U.S. group that monitors Islamic extremist Web sites says an extremist organization is reporting 15 of its members were killed in a U.S. missile strike in Afghanistan.

The SITE Intelligence Group says the report was posted Friday on a Web site by the Turkistan Islamic Party. SITE quotes the group as saying 13 Uighers and two Turks were killed Tuesday by a missile fired by a U.S. unmanned aircraft in Afghanistan but did not say where.

Pakistani officials reported two missile attacks along the border Tuesday.