Turkish students in the border town of Akcakale arrive at school on Monday morning hopeful to return to their classes after a three-week break amid cross-border fighting with Syria.

But to their disappointment the school doors remained shut.

This girl said that the students miss their teachers and want to return to their lessons. She also said that many among them have relatives who died or were wounded in the violence.

Fresh mortar fire from Syrian territory struck the town on Sunday. There were no immediate reports of casualties from yesterday's strike, but just four days earlier five civilians were killed by Syrian shelling.

Turkey retalliated by several attacks on Syrian military targets.

Prime Minister Tayyip Erdogan said on Sunday that Turkey is prepared to face a war if it becomes necessary.

Speaking at a conference in Istanbul, Erdogan said while Turkey does not want a war, it would take the "necessary" measures to protect peace and warned Syria not to test its resolve.

Damascus claimed its fire hit Turkey accidently.