Houthi rebels are imposing severe restrictions on humanitarian flights arriving in Yemen

Yemen's Houthi rebels have announced severe restrictions on humanitarian flights arriving in Sana'a.
The Houthi-run Civil Aviation Authority said no humanitarian planes would land in Sanaa between March 25 and 30.
The announcement states that such flights to Sana'a will be allowed only on Fridays.
The Iran-backed Houthis said the decision was in response to an alleged ban on commercial flights to and from the Yemeni capital and a ban on booking flights from Sana'a.
Sana'a International Airport partially reopened to commercial flights last year as part of a UN-brokered ceasefire agreement between Yemen's warring parties.
The ceasefire expired in October when the two sides failed to reach a compromise on renewing the truce.