The UN says Houthi rebels have pulled out of three key Red Sea ports in Yemen, in partial implementation of a ceasefire deal agreed six months ago.
Hudaydah, Salif and Ras Issa were handed over to the coast guard.
The UN said work was still needed to remove trenches, barriers and mines – and to implement the rest of the deal.
The Houthis and pro-government forces, which are backed by a Saudi-led coalition, agreed to leave the ports to allow in vital humanitarian aid.
However, the BBC’s Lyse Doucet says some Yemenis are sceptical about the latest pull-out and accuse the Houthis of leaving fighters in the ports disguised as coast guard personnel.
Yemen’s government has previously warned that the withdrawal would be a rebel “ploy”.