A drone strike targeted Sudan's biggest naval base Wednesday, an army source told AFP, marking the fourth straight day the seat of the army-backed government has come under attack. The foreign ministry of the army-backed government described the attack on Port Sudan as "a full-fledged crime of aggression",

They (the drones) were met with anti-aircraft missiles,' the source said on condition of anonymity because they were not authorised to speak to the media.

Port Sudan is the main entry point for humanitarian aid into Sudan. A spokesman for UN chief Antonio Guterres said the drone strikes 'could lead to large-scale civilian casualties and further destruction of critical infrastructure.