Three United Nations peacekeepers were on Sunday seriously injured in a rocket attack on a military base in the north of the conflict-ridden Sahel state, UN and local officials said. Olivier Salgado, the spokesman for the UN’s MINUSMA mission in Mali, said the attack took place on a base in Tessalit – in the north – which houses Malian soldiers, UN peacekeepers and French troops. Three peacekeepers were “gravely wounded” in the attack, he added. A Tessalit tribal leader, who declined to be named, said that the camp had come under rocket fire, hitting the barracks of peacekeepers from Chad. “The situation is currently calm and under control,” he added. Mali has been battling a brutal jihadist insurgency since 2012, when Islamist fighters first emerged during a rebellion by ethnic Tuareg sep...