Shelling and air strikes pounded parts of Sudan's capital on Sunday with little sign that warring military factions were ready to back down in a month-long conflict that has killed hundreds despite ceasefire talks in Saudi Arabia.
Khartoum and the adjoining cities of Bahri and Omdurman across the Nile's two branches have been the main theatre of conflict along with western Darfur province since the army and the Rapid Support Forces paramilitary started fighting on April 15.
