NEW : ` ` Such actions have caused local public outrage and outrage , '' Obama 's office says . An armed group is torturing and killing innocent people , Afghanistan 's government says . The group is ` ` named as '' U.S. special forces , according to the Afghan president 's office . The U.S. military says it is investigating .
NEW : `` Such actions have caused local public resentment and hatred , '' Karzai 's office says . An armed group is torturing and killing innocent people , Afghanistan 's government says . The group is `` named as '' U.S. special forces , according to the Afghan president 's office . The U.S. military says it is investigating .