Turkish President Abdullah Gul said on Monday, October 8, that the “worst-case scenarios” were now playing out in Syria and Turkey would do everything necessary to protect itself, as its army fired back for a sixth day after a shell from Syria flew over the border, Reuters reported. Gul said the violence in Turkey’s southern neighbor could not go on indefinitely and Assad’s fall was inevitable. “It is a must for the international community to take effective action before Syria turns into a bigger wreck and further blood is shed, that is our main wish,” he said. Turkish and Syrian troops have been shelling each other since last Wednesday, after a Syrian mortar shell killed five civilians in Turkey. U.N. Secretary-General Ban Ki-moon said the escalation of the conflict along the Turkey-Syria border, as well as the impact of the crisis on Lebanon, were “extremely dangerous.”