In Sudan, evacuations by some countries face problems amid battle between rival military factions that has triggered a humanitarian crisis.

Sudan's warring army and Rapid Support Forces have accused each other of attacking a convoy of French nationals.

Intense fighting continues around the army's headquarters in central Khartoum and the airport, which has been closed by the clashes.

The US President Joe Biden has called upon the parties to implement an immediate and unconditional ceasefire, allow unhindered humanitarian access and respect the will of the people of Sudan.