Security officials say a series of airstrikes by a Saudi-led coalition have targeted the headquarters of Yemen's armed forces in the rebel-held capital, Sanaa.

The officials say Sunday's pre-dawn airstrikes caused widespread destruction to the facility and damaged several nearby homes. The entire city was shaken by the blasts from the airstrikes.

There was no immediate word on casualties. The officials spoke on condition of anonymity because they were not authorized to speak to the media.

The Saudi-led coalition began launching airstrikes on March 26 against the Iranian-backed Shiite rebels, known as Houthis, and their allies in the military and security forces. The Houthis seized Sanaa in September and later captured much of northern Yemen before advancing on the south in March.