The National Union of Malian Workers (UNTM) says it represents 80% of unionised workers in the country, including miners, teachers and health workers.

"I confirm we will go on strike for 72 hours," UNTM secretary general Yacouba Katile told Reuters. "There has not been an agreement between us and the authorities."

Mali is one of Africa`s largest gold producers. Companies operating in the country include Barrick Gold Corp and Resolute Mining.