The battle between rival groups for the Libyan capital has killed more than 1,000 people since it began in April, the United Nations said, a grim milestone in a stalemated conflict partly fuelled by regional powers.

The World Health Organization (WHO) said in a brief statement on Tuesday that 1,048 people, including 106 civilians, have been killed since the offensive began. It said 5,558 were wounded, including 289 civilians. Forces loyal to Khalifa Haftar, a renegade military commander, launched an offensive on Tripoli in early April, advancing on the city’s southern outskirts to wrestle the capital from forces loyal to the UN-recognised Government of National Accord