Speaking to journalists after visiting the victims, United States ambassador Michael Ranneberger said his country would continue to support the Somali government. He said such attacks would not deter the US.

“We continue to believe and remain confident that the Transitional Federal Government will be able to expand its authority and eventually promote peace and stability in a democratic transition throughout Somalia,” Rannerberger said.

More than 21 people, including three ministers attending a doctors’ graduation ceremony in Mogadishu were killed after a suicide bomber attacked injuring dozens others.

The Somali president, prime minister and top officials who held an emergency meeting at the presidency announced three days of mourning.

US reacts

The US ambassador said this tactics of Al-shabaab show it is becoming weak. “When an organization results to this suicide type of attacks that show a degree of desperation.”

He linked his statement with the seizure of Dhobley town located at the border between Somalia and Kenya where Islamist group of Al-shabaab took over Hisbul Islam rebel.

He declared that the US was strongly working with Kenyan about the security situation in Somalia.

The suicide attack hit Mogadishu on Thursday. However, the Islamist group of Al-shabaab has denied links with the attack.

Qamar Aden Ali, the country's health minister, Ahmed Abdulahi Waayeel, the minister of education, and Ibrahim Hassan Addow, the minister of higher education and another two journalists who were covering the ceremony were killed in the explosion.