ADEN, Yemen, Saudi backed Yemeni President, Abdu-Rabbu Mansour Hadi, issued a number of decrees and fired a cabinet minister, along with the governor of the southern port city of Aden, creating anger among pro-secession southern politicians and supporters.

The presidential decrees, issued late on Thursday, sacked Major General Aidarous Zubaidi, as Aden governor, and replaced him with Abdulaziz al-Mufleihi. Yemen's Minister of State, Hani Bin Buraik, was also fired and forwarded for investigation.

Observers said, the decrees targeted the two southern officials, who are considered as the most powerful figures in Aden and key UAE-allied military commanders.

According to observers, the stand-off and odds between Saudi-backed Yemeni President Hadi and UAE, have just reached boiling point.

UAE-backed Governor of Aden, Aidarous Zubaidi, held an exceptional meeting with his team, hours after Hadi's decree, but no details have been revealed yet.

Suspected UAE fighter jets hovered over Aden's airspace and sporadic clashes occurred. Citizens in Aden fear further escalations, as a result of Hadi's presidential decrees.

Hadi's decisions to remove the UAE-loyal Aden governor, created anger among leading secessionist leaders and supporters, who called for anti-Hadi demonstrations in the country's southern regions.

The southern port city of Aden is the headquarters of Yemen's internationally-backed President, Abdu-Rabbu Mansour Hadi, and his government.

Aden witnessed several well-planned assassinations and armed attacks, after Saudi-backed forces drove the Shiite Houthi rebels out from the strategic city in July, 2015.

The legitimate government controls the south and some eastern parts, while the Houthi-Saleh alliance controls the other parts, including the capital Sanaa.

The UN has sponsored peace talks between the warring factions several times, but the factions failed to reach common ground.

The civil war, ground battles and air strikes have already killed more than 10,000 people, half of them civilians, injured more than 35,000 and displaced over two million, according to humanitarian agencies.