Masked gunmen fire on Army bus in Cairo, killing one officer: Army source

Cairo: Masked gunmen opened fire on an army bus in Cairo on Thursday, killing one officer and wounding three soldiers, said a military source.
Islamist militants are expanding their insurgency in Egypt where Army chief Field Marshal Abdel Fattah al-Sisi, who overthrew Mohamed Mursi of the Muslim Brotherhood in July, is expected to announce he will run for president within days.