Foreign Secretary Jeremy Hunt (Picture: PA).
The Foreign Secretary has warned a peace process to end Yemen's civil war is in the "last chance saloon" during a visit to the country.
Jeremy Hunt said the Stockholm agreement could be "dead within weeks" if both sides do not stick to their commitments.
These include clearing forces from the Red Sea port of Hodeida, where it is hoped aid can be brought in.
Thousands of people have been killed in Yemen's four-year civil war, which has pitched Iran-backed Houthi rebels against a coalition led by Saudi Arabia in support of the internationally recognised government of Yemen.
Millions of people in the country are also on the brink of starvation.
Mr Hunt travelled to the city of Aden, the first such visit by a UK Foreign Secretary since 1996, where he said: "We are now in last chance saloon for the Stockholm peace process.
"The port of Hodeida was supposed to cleared of militia and left under neutral control by the beginning of January.
"The process could be dead within weeks if we do not see both sides sticking to their commitments in Stockholm.
"People in Yemen are on the brink of starvation and none of the parties really want a return to hostilities - so now is the time to take a deep breath, put aside the anger and mistrust after four years of terrible fighting and take the risks that are always necessary at the start of any peace process."
The warring parties first agreed to a ceasefire in Hodeida and a prisoner exchange back in December after talks in Sweden but its implementation was stalled.
According to Yemeni government sources, the original ceasefire agreement was broken "within minutes".