Turkish warplanes hit a suspected Kurdish rebel target in northern Iraq, Turkey's military said Sunday. The cross-border air assault targeted a rebel shelter late Saturday where a group of PKK Kurdish rebels was believed to have gathered before a planned attack in Turkey, the military said on its Web site. The Turkish army provided no casualty figures. The reported air raid on the Avasin-Basyan region of Iraq could not independently be confirmed. Turkey's military has launched several air raids and one ground incursion targeting the PKK rebel safe havens in northern Iraq since the parliament authorized cross-border military moves following a surge in PKK ambushes inside Turkey late last year.