GHALANAI/PESHAWAR: The Umar Khalid group of Taliban killed two top leaders of a rival militant group in Mohmand on Saturday. Taliban spokesman Dr Asad said that the chief of Shah group, Muslim Khan, and his deputy, Maulvi Obaidullah, were shot dead after a Taliban court ordered their executions. Meanwhile, Baitullah Mehsud called an immediate meeting of Taliban Shoora to hold accountable Khalid for the killings, Geo TV quoted Maulvi Umer as saying.