TEHRAN (Press Shia) – The UN envoy for Yemen landed in Sana’a on Monday for talks aimed at shoring up a truce between forces loyal to Yemen’s fugitive former president Abd Rabbuh Mansur Hadi and he Ansarullah movement in the port city of Hudaydah.

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Martin Griffiths landed in the capital at around 10:30 am local time (1330 GMT), an official at Sana’a airport told AFP on condition of anonymity.

A UN source confirmed the news, saying Griffiths was in Yemen to "work on the rapid implementation of the Hudaydah agreement".

Griffiths hosted hard-won peace talks between the two sides in Sweden last month.

Monday's visit marks Griffiths' second trip to Yemen this month.

The two parties agreed to a ceasefire in Hudaydah, home to impoverished Yemen's most valuable port.

The Hudaydah agreement stipulates the withdrawal and redeployment of rival forces from the city, two clauses that have yet to be fulfilled.

Griffiths was working to convene a "face-to-face" meeting in Hudaydah of the committee tasked with overseeing the deal, said UN spokesman Stephane Dujarric.

The UN envoy is expected to travel to Riyadh in the coming days.

The UN said a team tasked with monitoring the truce, led by chief monitor Patrick Cammaert, came under fire in Hudaydah on Friday but was unharmed.

The UN did not identify who was behind the shooting.