Yemeni counter-terrorism forces, arrested on Tuesday, a leader of the Yemen-based affiliate of the Daesh group, suspected of recruiting suicide assailants in the southern port city of Aden.

A statement released by the counter-terrorism unit in Aden, said that, "a mid-level commander" of Daesh was captured during a "surprise anti-terror operation, conducted in Aden's neighbourhood of Enma."

The captured suspect had been using social media accounts, in recruiting young people from local mosques into the Daesh group as suicide bombers, the statement said.

"The suspect confessed to recruiting more than 25 young people as suicide bombers, nearly five of them have since launched attacks against locations in Aden," the statement added.

A military official said that, the security forces and other military units tightened security measures around state facilities and deployed many patrols to track the remaining 20 would-be suicide attackers in Aden.

The counter-terrorism unit released the suspect's personal picture on Facebook without mentioning his full name.

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.

However, the newly-trained anti-terrorism troops, supported by the United Arab Emirates (UAE) armoured vehicles, made substantial achievements in recent weeks, disabling several explosive material factories, used by the terrorists to manufacture car bombs in Aden.

In addition, several commanders of the Yemen-based al-Qaeda branch were captured in the successful raids, conducted by the UAE-backed Yemeni forces in Aden and neighbouring provinces.

Yemen, an impoverished Arab country, has been gripped by one of the most active regional al-Qaeda insurgencies in the Middle East.

The Yemen-based al-Qaeda in the Arabian Peninsula (AQAP), also known locally as "Ansar al-Sharia," emerged in Jan, 2009, claiming responsibility for a number of terrorist attacks against Yemen's army and governmental institutions.

The AQAP and the Daesh-linked terrorists, took advantage of the security vacuum and ongoing civil war, to expand their influence and seize more territories in southern Yemen.

Security in Yemen has deteriorated since Mar, 2015, when war broke out between the Shiite Houthi group, supported by former President, Ali Abdullah Saleh, and government forces, backed by a Saudi-led Arab coalition.

Over 10,000 people have been killed in ground battles and air strikes since then, many of them civilians.