The Houthi rebels in Yemen have not received any official invitation for United Nations-led peace talks in Sweden.

Minister of information and spokesman of the Houthi in the rebel-held capital Sanaa said that the new round of peace talks remains unclear though it has been widely discussed by the outside world.

Just ahead of a new round of peace talks, UN envoy to Yemen Martin Griffiths visited Sanaa on Monday for a stopover in an effort allegedly to get Houthi delegates to Sweden.

Failure to cut a deal on medical treatment of Houthi injured fighters is believed a key reason behind the collapse of previous round of talks in Geneva in September.