Al-Shabaab is normally better known for its deadly attacks than its environmental commitments.
The Somalia-based Islamist militant group, al-Shabab, claimed responsibility for the attack.
At least seventeen people killed in double car bombings in the Somali capital
Fighting follows an al-Shabaab suicide bombing in Somalia.
Mukhtar Robow Abu Mansur defected to the Somalian government last week and has now spoken out against the militant group.
Several people have been killed in the attack in Mogadishu
A suicide bombing and gun attack in the Somali capital has killed at least 17 people, including foreigners.
The explosion was caused by a vehicle that had been parked near a restaurant in central Mogadishu.
Somali Islamist group al Shabaab have bombed a restaurant frequented by members of the security forces in Mogadishu, killing three, officials said.