MOGADISHU, June 8 (Xinhua) -- Three senior al-Shabab commanders behind a series of deadly attacks across Somalia have been killed in a joint security operation conducted by allied forces, the government confirmed on Saturday evening.

The Ministry of Information, Culture and Tourism said those killed included Nuur Abdi Rooble, who was among the most brutal terrorists involved in attacks against civilians across Somalia. He succumbed to wounds sustained during an aerial operation conducted by the Somali army and its international security partners on the outskirts of El-Bur town in central Somalia on Friday.

Rooble joined al-Shabab in 2009, and his death dealt a significant blow to the terror networks threatening the lives of Somalis, the ministry said.

"The government is closely monitoring the situation of injured militants and ringleaders, whom al-Shabab is attempting to evacuate from conflict zones," the ministry said.

Other senior commanders killed during the operation were identified as Caddaw, who was responsible for what the extremist group refers to as "intelligence tracking" in the Galgaduud region, and Macallin Cumar, a ringleader responsible for training of al-Shabab militants.

"This brings the total number of al-Shabab ringleaders eliminated in this operation to five. All neutralized terrorists were involved in orchestrating terror activities in Hiiraan and Middle Shabelle," the ministry said. ■