The violence has killed at least 36 people and wounded 185 since Sunday, according to the International Committee of the Red Cross.
The UAE-trained force, dubbed the "security belt", is stationed in southern Yemen and supports the STC.
South Yemen was independent - with former British colony Aden as its capital - from its formation in 1967 until 1990, when it was unified with North Yemen.
Aden is meant to be the "interim" capital of the pro-Saudi Hadi government, but is also the historical capital of South Yemen.
While President Abedrabbo Mansour Hadi now resides in Riyadh, two military officials said Prime Minister Ahmed bin Dagher and a number of senior government figures were holed up in the Aden presidential palace.
Yemen's government, allied with the Saudi-led Arab military coalition, has been battling Iran-backed Shiite Houthi rebels over the control of the country for about three years.
He urged the Saudi-led coalition to intervene in its defence.
At the same time, a key member of that coalition, the United Arab Emirates, has closely backed the STC with an eye toward maintaining crucial oil shipping routes in Yemen's south.
Yemen's presidency on Monday condemned recent developments in southern Aden province, describing them as "tantamount to a coup".
It has also exposed deep cracks within the Saudi-led coalition, which has been fighting Yemen's Houthi rebels on behalf of Hadi's government since March 2015. Fierce fighting previously broke out between militants and the Yemeni government forces, on Sunday. Turki al-Maliki suggested that the Hadi faction explore the demands of the separatists and seek talks.
And the broken pact threatens to undermine still another, the Saudi-led Arab coalition that has been conducting an airstrike campaign meant to dislodge the Shiite Houthis since 2015.
He was photographed in London this evening, following a medical, and will wear the Number 33 jersey at Stamford Bridge. After joining from Santos in 2015, Palmieri established himself as an attacking full back in Serie A.
Meanwhile, cloud cover - chiefly over the north-central states as well as parts of the Far West - may hide the shady lunar drama. The full moon will rise on the evening of Tuesday, Jan. 30, and set around daybreak on Wednesday, Jan. 31, local time.
In December 2017, Trump dropped climate change from a list of threats to USA national security. "Would I go back in?" he asked. They were going to be gone by now, but now they're setting records, okay? "They're at a record level", Trump proceeded to say.
He said a report on the BuzzFeed News website about the leaked study was a "selective interpretation" of a "preliminary analysis". The documents said growth over the next 15 years could be up to 8% lower than if the United Kingdom stayed in the EU.
According to the Times , the company, Devumi , has a library of 3.5 million bot accounts that can be sold repeatedly. On Saturday, Twitter tweeted that these tactics "violate our policies and are unnacceptable (sic) to us".
And in October 2016, Daniel, an emotional support duck, flew from Charlotte to Asheville, N.C., according to the Washington Post. Canadian carrier WestJet allows miniature horse and monkeys to board as emotional support animals - with proper documentation.
Spokesman Hazem Qassem said on Tuesday that Imad al-Alami had been unconscious since the January 9 shooting. Hamas claimed after the incident that al-Alami was wounded while he was checking his handgun.
ESPN later released an interview with Rousey, where she revealed she signed a full-time contract with WWE and intends to compete. Ronda Rousey attended a WWE event in September, among other major hints past year that a deal with the company was close .
Donald Glover has confirmed that he will still retire Childish Gambino following the conclusion of his next music project. "I'm making another project right now, but I like endings, I think they're important to progress", said Glover .
It is positive, as 15 investors sold OI shares while 85 reduced holdings. 75 funds opened positions while 289 raised stakes. UNITE Group plc has a 50 day moving average of 776.24 GBX and a 200 Day Moving Average share price is recorded at 702.37.
One person tells The Associated Press that the length of Wall's absence will be determined after the surgery. Wall initially injured the knee in early November and since then has been dealing with periodic soreness.
Paul Rudd stars in first trailer for Ant-Man and the Wasp
The Ant-Man mask includes a twist knob that allows users to alternate between Red Vision, Ant Vision, and Quantum Vision. In the after credits of "Ant-Man", Hope gets her own super-suit, taking up her missing mother's mantle as The Wasp.
Chelsea loan out Musonda
Musonda will get plenty of game time and young players have the habit of progressing well under Rodgers. Chelsea midfielder Charly Musonda has completed his move to Celtic on an 18-month loan deal.
Monkey testing: VW suspends media chief
In 2015 VW admitted having fitted "cheat" devices in the USA that made its engines appear less polluting than they actually were. Steg has declared that he will assume full responsibility". "We're convinced the scientific methods chosen then were wrong".
Man charged over Hayes bus stop crash that killed three friends
It is understood that they had been on their way to a birthday party at a nearby football club with friends when they were killed. He and his friend, Amamdeep Matharoo, 27, pulled over and Mr Webb said: "I said "can you stop that, we're going to call 999".
Alonso likely to return to Daytona
I made up ground but I had no clue what position I was in, I certainly didn't think I was near P1. But the vehicle slipped from contention when Hanson suffered a puncture later in the night.