DAVOS, Switzerland (AP) — Turkey’s foreign minister is calling on the international community to declare the Syrian regime’s bombardment of its own citizens a war crime and to insist on humanitarian access to areas of central Syria.

Syria has seen a new rise in violence in recent weeks, including a government rocket attack Wednesday, in a conflict that the U.N. says has killed more than 60,000 people.

Turkey’s Ahmet Davutoglu said Wednesday that “Aleppo and many other cities are being bombarded by airplanes indiscriminately.” His country has taken in tens of thousands of Syrian refugees.

Speaking at the World Economic Forum in Davos, Switzerland, he said, “this is a criminal act” even at a time of war.