Sudanese military officials say paramilitary fighters unleashed drones on the Red Sea city of Port Sudan, hitting key targets there, including the airport, the port and a hotel.

British maritime security firm Ambrey reported on Tuesday that the paramilitary Rapid Support Forces (RSF) had launched a drone attack on facilities at Port Sudan, targeting the container terminal and escalating a two-year-long conflict.

Sudan has cut diplomatic ties with the United Arab Emirates (UAE), after repeatedly accusing the Gulf nation of backing the rival Rapid Support Forces (RSF) in the country's civil war. The announcement comes after the RSF were blamed for three days of attacks on the usually safe city of Port Sudan.

The International Court of Justice said on Monday it had dismissed Sudan's genocide case against the United Arab Emirates over the UAE's alleged interference in Darfur, saying it lacked authority to rule on the matter.

The top United Nations court has dismissed a case brought by Sudan accusing the United Arab Emirates of breaching the genocide convention by arming and funding the rebel paramilitary Rapid Support For