Douala - The United Nations says one peacekeeper died and six were injured after their vehicle struck a landmine in northern Mali.
The incident occurred on Monday 30km west of Timbuktu, which like the rest of northern Mali fell to rebels including Islamic extremists in 2012.
A French-led intervention last year scattered the extremists, though Mali's government has warned about their return. Tuareg separatists have also increasingly pushed back against the authority of the Bamako-based government.
The UN Secretary-General Ban Ki-moon condemned the explosion. He said the peacekeepers were from Burkina Faso. Three were seriously hurt.
A suicide attack last month at a UN camp in the Kidal region killed four Chadian peacekeepers.
The UN peacekeeping mission of 11 200 military personnel and 1 440 police is not yet at full strength.