United Nations Yemen envoy Martin Griffiths told the U.N. Security Council on Friday that the number of air strikes by the Saudi-led coalition battling Iran-aligned Houthis in Yemen has dropped nearly 80% in the last two weeks.

"In what is perhaps an even more important sign that something is changing in Yemen ... In the last two weeks the rate has dramatically reduced: there were almost 80% fewer airstrikes nationwide than in the two weeks prior," he said.