In 2013, a number of Tanzanian claimants represented by Leigh Day initiated proceedings against African Barrick Gold plc (now Acacia Mining plc) and its subsidiary, North Mara Gold Mine Limited (NMGML), in the English Courts in relation to injuries and fatalities at the North Mara mine.

The claims were denied by Acacia Mining and NMGML. The litigation and further claims have been settled out of court.