ISTANBUL - Turkish commandos crossed the border into northern Iraq in ?pursuit of Kurdish guerrillas on Wednesday after the militants killed 24 Turkish soldiers in attacks in southeast Turkey, military sources in the region told Reuters.

They said there were intermittent clashes between the troops, who advanced some 3-4 km into Iraqi territory, and Kurdistan Workers' Party (PKK) rebels in the border area near Cukurca in Hakkari province.