Sudan in turmoil as armed forces clash and civilian casualties mount.

Two rival armed forces, Sudan's military and a powerful paramilitary force, are engaged in a deadly battle for control of the country, with nearly 100 civilians killed and the capital, Khartoum, rocked by heavy fighting. The clashes are part of a power struggle between two rival generals vying for power, and despite mounting international pressure for a cease-fire, the violence threatens to spiral into a deeper conflict that could derail the country's bumpy transition to democracy.