Yemeni President Abdrabuh Mansur Hadi resigned on Thursday after Shiite militia failed to honour an agreement to withdraw from the presidential palace, adviser Sultan al-Atwani said.
Other presidential advisers confirmed that Hadi, a key US ally in the fight against Al-Qaeda, had stepped down.
The announcement came shortly after Prime Minister Khalid Bahah tendered the resignation of his cabinet, saying he did not want to be held responsible for the deepening lawlessness gripping the country.