Explosions and fires rocked Sudan's main port city and wartime capital Port Sudan on Tuesday, a witness said, part of a days-long drone assault that has torched the country's biggest fuel depot, damaging the most important gateway for foreign aid.

Sudan’s paramilitary Rapid Support Forces launched a drone attack Sunday targeting a military airbase and civilian facilities in the coastal city of Port Sudan, the military said. No casualties were reported in what is the first known attack by the Rapid Support Forces on the Red Sea city.