The UN's Libya mission insisted on Tuesday that planned peace talks in Geneva would go ahead the following day, after rival sides separately said they would not take part.

The announcement came after a parliament based in eastern Libya, backed by military commander Khalifa Haftar, said it would not take part because the United Nations Support Mission in Libya (UNSMIL) had not approved all of its representatives.

A rival authority in Tripoli, the High State Council - the equivalent of a senate - also said it would not participate in the talks set for Wednesday until progress was made in military negotiations.