KHARTOUM, April 18 (AFP) - Fighting between the army and paramilitaries in Sudan has killed around 200 people and wounded 1,800, damaging hospitals and hampering aid on Monday after three days of urban warfare.

A weeks-long power struggle exploded into deadly violence Saturday between the forces of two generals who seized power in a 2021 coup, Sudan's army chief Abdel Fattah al Burhan and his deputy, Mohamed Hamdan Daglo, who commands the paramilitary Rapid Support Forces (RSF).

The European Union's ambassador to Sudan was attacked in his home in the city on Monday, the bloc's top diplomat Josep Borrell said. A spokesperson told AFP the veteran diplomat was "OK" following the assault.

"Security of diplomatic premises and staff is a primary responsibility of Sudanese authorities and an obligation under international law," Borrell said.

Battles have taken place throughout the vast country, and there are fears of regional spillover.

Terrified residents of the capital are spending the last and holiest days of Ramadan watching from their windows as tanks roll through the streets, buildings shake, and smoke from fires triggered by the fighting hangs in the air.

The conflict has seen air strikes, artillery and heavy gunfire.

Those compelled to venture out face queues for bread and petrol at outlets which are not shuttered. Residents are also dealing with power outages.

Volker Perthes, the head of the United Nations mission to Sudan, told the Security Council in a closed-door session that at least 185 people have been killed and another 1,800 wounded.

"It's a very fluid situation so it's very difficult to say where the balance is shifting to," Perthes told reporters after the meeting.

Earlier Monday, UN Secretary-General Antonio Guterres again called on Sudan's warring parties to "immediately cease hostilities". He warned that further escalation "could be devastating for the country and the region."