UPDATE:
According to Yemeni officials, Houthi militants seized the presidential palace in the southern port city of Aden after clashes, reported AFP.
Yemeni President Abed Rabbo Mansour Hadi resided in the palace before fleeing to neighboring Saudi Arabia last month.
Houthi rebels have claimed a district in central Aden despite the Saudi-led coalition's best attempts to stop their advances, reports Reuters.
This was the first time fighting on the ground had reached so deeply into central Aden.
The victory is a major blow to the Saudi-led campaign against the Houthis, who have rapidly expanded their sphere of influence after having taken control of Yemen's capital city, Sanaa.
