BAMAKO: A United Nations Multidimensional Integrated Stabilization Mission in Mali (Minusma) peacekeeper was killed and three were seriously injured following the explosion of an improvised explosive device in the northeast of Mali, a United Nations official said. The head of the UN mission, El-Ghassim Wane, announced on Saturday on his Twitter account that it was a Minusma vehicle that hit an improvised explosive device near Tessalit of Kidal Region. "The death toll is one and three serious injuries... This reminds us of the ongoing danger to our peacekeepers and the sacrifices made for peace in Mali," Wane tweeted.