Aboud Rogo Mohammed was placed on a US sanctions list in July for "engaging in acts that directly or indirectly threaten the peace, security or stability of Somalia".
One person has been reported dead during a battle between police and youth protesting the killing of Muslim cleric Aboud Rogo outside Majengo mosque, Mombasa.
Gunmen shot dead the radical Muslim cleric in Bamburi area in Mombasa.
The cleric was killed when the van he was travelling in from Mtwapa towards Mombasa with three other people on board was sprayed with bullets near Pirates Beach.
Two of them have sustained serious injuries and rushed to hospital as his body was taken away.
According to the wife, Haniya said Saadar, Aboud who was driving the van was taking one person to hospital when the incident occured.
A conflict arose between police and the clerics' supporters as the latter fought to have custody of the body. In a private ambulance, the supporters seized the body claiming to take it to Kikambala, Kilifi for burial.
A Salvation Army church near the Majengo mosque where a service for the diseased was being held was set on fire. Protesters were dispersed as they tried to attack another church, Jesus Celebration centre in Tudor.
The UN Security Council imposed a travel ban and asset freeze on him in July, saying he had provided "financial, material, logistical or technical support to al-Shabab".
It accused him of being the "main ideological leader" of Kenya's al-Hijra group, also known as the Muslim Youth Centre, which is viewed as a close ally of al-Shabab.
He had "used the extremist group as a pathway for radicalisation and recruitment of principally Swahili-speaking Africans for carrying out violent militant activity in Somalia," the UN added.
In 2005, Mr Rogo was cleared on murder charges over the 2002 attack on a hotel where Israeli tourists were staying, which killed 12 people.
According to eyewitness accounts, the assassins:
1. Were definitely heavily armed black Africans.
2. They shot the guy, stopped their own vehicle, and then came out to assess their grim handiwork.
3. The shots they fired were precise and are only visible around the driver's/victim's door.
4. They stood around for at least 15 minutes without talking or discussion amongst themselves.
5. Even Bamburi OCS whose station is just 150m away came out but did not question or discuss anything with the killers, giving rise to speculation that he knew exactly who they were and the issue was out of his jurisdiction.
