Mourners from Kenya's various colors and creeds gathered in the capital Nairobi Monday for an emotional ceremony marking one month since Islamist gunmen massacred close to 70 people in a mall.

Relatives of the victims of the four-day siege at the upmarket Westgate mall planted trees, lit candles and held prayers for the dead, with members of Kenya's black, white and Asian community putting on a display of unity.

Two Christian clerics on Kenya's coast were killed in separate attacks over the weekend, witnesses said Sunday, two weeks after the killing of a Muslim preacher sparked deadly riots in port city Mombasa.

Charles Matole, a leader of Mombasa's Vikwatani Redeemed Gospel Church, was found dead in the church Sunday morning, sitting on a chair with a Bible on his lap -- apparently preparing his Sunday morning service.

New CCTV footage from Nairobi's Westgate mall appears to shows Kenyan soldiers carrying loot out of the besieged mall, attacked exactly four weeks ago, the Nation newspaper reported Saturday.

The report comes two days after members of parliament investigating the attack absolved the army of looting.

The International Criminal Court on Friday partially excused Kenyan President Uhuru Kenyatta from his upcoming crimes against humanity trial to allow him to fulfill his "demanding" political duties at home.

Kenyatta, who was elected president in March, has long argued that the trial in The Hague would hamper his running of the country.

 A Norwegian citizen of Somali origin is suspected of being one of the attackers who stormed a Kenyan shopping mall last month massacring 67 people, the BBC said.

The 23-year-old was named as Hassan Abdi Dhuhulow, who the BBC said is suspected of helping to plan and carry out the attack on the upmarket Westgate mall.

Two Somali nationals died when a bomb they were making detonated in their home in the Ethiopian capital Addis Ababa, as thousands gathered to watch a football match, officials said Monday.

"The ones who died were of Somali origin," Ethiopia's Minister of Information Redwan Hussein told AFP.

The African Union's call for the International Criminal Court to defer the crimes against humanity trials of Kenya's leadership is "deplorable", Amnesty International said Sunday.

The London-based human rights organization said the AU, which also called for sitting heads of state to be exempt from appearing before the court in The Hague sent out the wrong message.

African nations on Saturday said that Kenyan President Uhuru Kenyatta should not show up for trial at the International Criminal Court before a response is given to demands his case be adjourned.

"What the summit decided is that President Kenyatta should not appear until the requests we have made is actually answered," said Ethiopian Foreign Minister Tedros Adhanom Ghebreyesus after a special African Union meeting.

Kenya repeated demands Wednesday for the crimes against humanity trial of President Uhuru Kenyatta at the International Criminal Court be held via video link.

"There is a request that has been put before the court for the president to be allowed to attend some of the sessions via video link," Foreign Minister Amina Mohamed told reporters.

African nations are to meet from Friday to debate a possible withdrawal from the International Criminal Court over claims it targets Africa, but that sentiment is being challenged by rights groups across the continent.

The 54-member African Union has accused The Hague-based ICC of singling out Africans for prosecution and has specifically demanded that the court drop the proceedings against Kenya's leadership.