At least 51 people died in twin attacks in the Yemeni city of Aden on Thursday, according to security and medical sources.

The city is the seat of power for Yemen's internationally recognized government, which is in the midst of conflict with the Iran-backed rebel Houthis who control the capital, Sanaa, and most of the country's north.

How the attacks unfolded

There were two attacks in the city: a strike on a military parade and coordinated bombings near a police station.

The early morning suicide bombing targeted policemen in Aden's Sheikh Othman area, killing at least 11 people and injuring 29 others.

No one has claimed responsibility for the police station attack.

In the parade attack, Houthi rebels claimed they hit the Al-Jala Camp with an armed drone and a medium-range ballistic missile.

The attack killed at least 40 people, and injured many more.

Read more: Saudi-led alliance launches airstrikes on Yemen's rebel capital

Iran blamed: Saudi Arabia's Yemen envoy, Mohammed bin Saeed Al Jabir, accused Iran coordinating both attacks, in a series of posts on Twitter. Yemen's Prime Minister Maeen Abdulmalik Saeed also accused Theran of being behind the attacks.

Insecurity: It is unclear if the attacks are related but they highlight the precarious security situation for the internationally-recognized Sunni government. After being forced out of Sanaa in 2014, the Saudi-and-UAE-backed government faces danger from increasingly ambitious rebels.

A crater was left in the ground following the missile attack on the military parade

UAE reduction: The UAE, one of the major coalition partners backing the deposed government, recently announced it would reduce troop numbers in the country, including Aden. The UAE claimed this would not leave a power vacuum in Yemen as it had trained 90,000 Yemeni forces. One of those killed in Thursday's attacks was Brigadier General Muneer al-Yafee, the commander of the

Security Belt's First Support Brigade, one of the flagship groups trained by the UAE.

Read more: UAE scaling back military role in Yemen conflict

Civilian toll: The four-year war has devastated the civilian population of the Arab world's poorest country, leaving them in a situation of insecurity, at risk of starvation and widespread disease. About 85,000 children under the age of 5 are estimated to have died from starvation or disease since the start of the war, while hundreds of thousands of people are suspected to have contracted cholera.

Stalled peace process: Houthi rebels have stepped up missile attacks, including strikes into Saudi Arabia. This has been met with increasing missile strikes, particularly around Sanaa. The escalating violence could complicate United Nations efforts for political talks.

Read more: Yemen is 'the biggest humanitarian disaster in the world'

aw/rt (Reuters, AFP, AP, dpa)

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