The U.N. peacekeeping chief is confirming a new allegation of sexual abuse by a peacekeeper in Central African Republic, where the United Nations is investigating 15 other cases of possible sexual misconduct by U.N. troops and police.

Herve Ladsous told reporters Friday that the U.N. has started to repatriate military personnel on disciplinary grounds and has adopted a new policy of suspending payments that countries receive for the troops they contribute to peacekeeping missions for soldiers involved in misconduct.

Ladsous, who just returned from the impoverished nation emerging from ethnic conflict, says he was "appalled at the conditions" for peacekeepers. He says there is no escape from the "very, very difficult conditions."

The U.N. is looking into chartering planes so peacekeepers can get some rest and recreation.