Turkey and Iraq will wage a joint struggle against Kurdish rebels operating along their shared mountainous border, the Turkish prime minister said Wednesday after meeting with his visiting counterpart from Iraq. Iraqi Prime Minister Nouri al-Maliki and Turkish Premier Recep Tayyip Erdogan also agreed to meet regularly to discuss efforts in fighting the rebel group Kurdistan Workers' Party, or the PKK. In southeastern Turkey, meanwhile, suspected Kurdish rebels opened fire on a military vehicle in the mainly Kurdish town of Cizre, killing three soldiers and wounding nine others, regional governor Ali Yerlikay said. Four of the wounded were in critical condition, he said. Security forces have launched an operation to catch the assailants, private NTV television reported.