The militia seized Yemen’s capital, Sanaa, in 2014 and are currently engaged in conflicts in a number of fronts across the country against the government, including in the resource-rich Marib province, where clashes have intensified in recent weeks.
A Saudi-led Arab coalition has been fighting the militia across Yemen to restore the internationally recognized government to power.
Saudi Arabia has called the Houthis targeting of civilian areas a war crime.
On Tuesday, the coalition destroyed a Houthi drone targeting the southern Saudi city of Khamis Mushayt.