Supporters of southern Yemeni separatists take part in an anti-government protest in Aden Yemen on Sunday
The violence in Aden has killed at least 36 people and wounded 185 since Sunday, according to the International Committee of the Red Cross.
According to Reuters, forces loyal to the Southern Transitional Council, formed previous year to push for the revival of the former independent state of South Yemen, seized the last stronghold of its Presidential Protection forces rival in Dar Saad area in northern Aden in battles that at times involved heavy artillery and tank fire.
No group has claimed responsibility for the attack, but the government officials blamed it on the Yemen-based Al Qaeda branch.
Yemen's embattled President Abed Rabbo Mansour Hadi said Monday that a "coup" is underway in his government's seat of power in the southern city of Aden, where separatists allied with the United Arab Emirates were battling his forces for a second day.
The US State Department pressed for an end to the fighting late on Monday, calling on all parties to "refrain from escalation and further bloodshed".
The southern port city of Aden is considered Yemen's temporary capital and the Saudi-backed Yemeni government has based itself there since 2015.
In the Aden district of Khor Maksar, the two sides deployed tanks and exchanged heavy gunfire as shops and schools remained closed for a second day.
Roy assault gets England going in Perth
He charged down the wicket to Mitchell Marsh like a village green cricketer and miscued a ball that Stoinis caught easily . Smith is ready to refresh after a heavy summer workload, but first he wants to end the ODI series in style.