Xinhua Middle East news summary at 2200 GMT, May 22

SANAA -- Yemen's Houthi militia said they had sent representatives to Jordan's capital Amman on Sunday to attend a UN-sponsored negotiation over lifting the siege on Taiz city as part of the ongoing truce.

The delegation left the Houthi-held capital of Sanaa via a UN plane, Houthi-run al-Masirah TV reported.

The government-controlled Taiz has been under siege since the civil war erupted in Yemen in late 2