A British detective gave evidence Monday in Kenya at the trial of suspected British militant Jermaine Grant, accused of ties to Somalia's al-Qaida-linked Shebab and plotting attacks.

Grant was arrested in December 2011 in Mombasa with various chemicals, batteries and switches, which prosecutors say he planned to use to make explosives. He denies the charges.

At least six people were killed Thursday in a suicide car bomb attack targeting a United Nations convoy close to Mogadishu's heavily-fortified international airport, officials said.

Somalia's al-Qaida-linked Shebab rebels, who are fighting to overthrow the country's internationally-backed government, told Agence France Presse that one of their suicide bombers carried out the attack.

Seventy men arrested during a raid on a mosque in the Kenyan port city of Mombasa were formally charged Wednesday with being members of Somalia's al-Qaida-linked Shebab rebels, officials said.

Kenyan police raided Mombasa's Musa mosque on February 2, detaining scores of suspects whom they accused of attending a radicalization meeting.

Kenya's army revealed Friday that the bodies of the gunmen who attacked Nairobi's Westgate shopping mall last year are in the hands of the FBI.

Military chief Julius Karangi was describing his troops' response to the attack at a forum organized by the media council to review coverage of the incident.

Four Somali men appeared in court Monday to face charges of an alleged attack on a cafe in Nairobi's airport, which police had initially dismissed as an exploding light bulb.

Anti-terrorism police officer Leonard Bwire said the four men were charged with having "planned and executed" a failed attack on the cafe at Jomo Kenyatta International Airport (JKIA) last month, the region's busiest transport hub.

The U.S. military launched a missile strike in Somalia on Sunday targeting a suspected Shebab militant leader, defense officials said.

One of the officials said an unmanned drone launched the missile in the late evening hours, but declined to confirm the suspect's identity or whether the strike was successful.

Somalia's Shebab insurgents called Saturday for renewed attacks against foreign forces, after arch-enemy Ethiopia joined the African Union force battling the extremists.

Top commanders of the al-Qaida-linked group, including insurgent supremo Ahmed Abdi Godane, met this week after Ethiopia formally joined the U.N.-backed mission known as AMISOM, Shebab spokesman Ali Mohamud Rage told Agence France Presse.

The conflict in South Sudan has been marked by human rights abuses as bad as those reported from war-torn nations like Syria and Somalia, a senior aid official said Thursday.

Jan Egeland, a former United Nations aid chief and now head of the Norwegian Refugee Council (NRC), said reports of large-scale recruitment of child soldiers signaled that the month-old conflict could still get worse.

Ethiopian troops in Somalia on Wednesday formally joined the U.N.-backed African Union force amid efforts to boost operations against Al-Qaeda-linked Shebab rebels, officials said.

Hardline Shebab insurgents control large parts of rural southern Somalia, having been driven from a string of towns by the African Union mission in Somalia (AMISOM), although guerrilla units stage regular deadly attacks in the capital Mogadishu.

Four men on trial for allegedly supporting the attack on Kenya's Westgate mall toured the massacre site Tuesday where at least 67 people were killed.

The September attack was claimed by Somalia's al-Qaida-linked Shebab insurgents.