Uhuru Kenyatta addressed the nation earlier

President Uhuru Kenyatta of Kenya has declared the end of a bloody four-day siege by Islamist militants at the Westgate shopping centre in the capital Nairobi.

A total of 61 people were killed during the assault, with more than 150 more injured.

Five attackers are believed to have been killed during a final confrontation with Kenyan military forces, with 11 more in custody.

In a TV address the president said Kenya has “shamed and defeated our attackers”.

However, the “losses are immense” he added.

Three days of national mourning have been declared, starting today.

Kenyan police are now clearing the mall, with the president warning the death toll may still rise further.

Part of the complex collapsed on Monday following a fire, with many bodies feared trapped in the rubble.

“I promise we shall have a full accountability for the mindless destruction, deaths, pain, loss and suffering we have all undergone as a national family,” the president in his address to the nation.

“These cowards will meet justice, as will their accomplices and patrons, wherever they are.”

Somali Islamist group al-Shabab said it had carried out the attack in retaliation for Kenyan army operations in Somalia.