Gen Haftar heads Libya's parallel government in control in the east of the country, but which is not recognised by the international community

"The General Command categorically denies reports of providing support to one party against the other," LNA spokesman Ahmad Mesmari is quoted as saying in statement by the Reuters news agency.

He said the army was ready to play a mediating role between the rival parties in Sudan.

The Sudan army and the paramilitary Rapid Support Forces (RSF) have been fighting since Saturday in clashes that have killed at least 270 people.