AMISOM peacekeepers, particularly Ugandan troops, have carried out airstrikes in Lower Shabelle region.
The administration of Lower Shabelle region in Somalia said that dozens of Al-Shabaab fighters were killed in the shelling.
Reports say that the attack targeted a convoy of Al-Shabaab vehicles and a place where they were planning to carry out attacks.
Lower Shabelle Governor Abdikadir Mohamed Nur Sidi said Ugandan troops had shelled several areas to prevent Al-Shabaab militants from entering the country during Ramadan.
Al-Shabaab has not yet commented on reports from the Lower Shabelle regional administration that airstrikes have killed al-Shabaab fighters in the region.