Escalation. No real detail except this from Reuters: TURKEY SAYS HAS STRUCK TARGETS IN SYRIA IN RESPONSE TO MORTAR STRIKE ACROSS BORDER - STATEMENT FROM PRIME MINISTER'S OFFICE This came after a Syrian mortar killed five Turks today. Turkey has contacted the United Nations and the Nato military alliance after Syrian shells killed five people in a Turkish town near the border between the two countries. The shells exploded after being fired into Akcakale from Tall al-Abyad in Syria, where forces loyal to President Bashar al-Assad are trying to put down an 18-month-old insurgency.