Yemen’s third largest city Taiz and its airport have been seized by Shia Houthi rebels, officials say

Yemen’s third largest city Taiz and its airport have been seized by Shia Houthi rebels, officials say

Residents took to the streets in protest and one was killed as the rebels fired on them and used tear gas. 

The insurgents already hold the capital, Sanaa, after overthrowing President Abdrabbuh Mansour Hadi in February. He fled to Aden in the south. 

Instability has been growing in Yemen, where al-Qaeda and Islamic State sympathisers also pose a threat.

Houthis are Shias, whereas ISIS and Al Qaeda are Sunnis.