UN casts doubts on Yemen's Houthi claim.

The United Nations cast doubt on Sunday on claims by Yemen's Houthi rebels to have withdrawn from the Red Sea port of Hodeida, saying such steps can only be credible if all other parties can verify them.

Stephane Dujarric, spokesman for UN Secretary-General Antonio Guterres, said the rebels, known as Houthis, also failed to honour an agreement to open a 'humanitarian' corridor between Hodeida and the capital, Sanaa, to deliver assistance.

Both cities are under rebel control.