Turkey's prime minister condemned an attack by Kurdish separatist guerrillas that killed 13 Turkish troops and said his cabinet will meet Monday to discuss a response to the attack. Turkish forces were shelling the guerrillas' escape routes after the attack outside the southeastern province of Sirnak, near Turkey's border with northern Iraq's Kurdish territories, the military said in a statement issued after Sunday's attack. "This is a heartbreaking situation, losing 13 soldiers after losing 12 civilians only about a week ago," Prime Minister Recep Tayyip Erdogan said in a statement from his office. "Cabinet will meet tomorrow and discuss the situation and next steps." The Kurdistan Workers Party, known as the PKK, has fought Turkish troops in the country's heavily Kurdish southeast for decades. Erdogan's government also blames the PKK for the killings of a dozen civilians near Sirnak on September 29. PKK spokesman Abdul-Rahman al-Chadarchi confirmed the attack and said the rebel fighters sustained no casualties, according to a report from The Associated Press.