Gemfields Group’s Mozambican ruby operation said attackers torched its vehicle, less than a month after 11 people died when parts of a mine pit they had forcefully accessed collapsed on them. A “large group” ambushed the truck on February 22 with pickaxes, injuring at least three workers and a security contractor, Montepuez Ruby Mining said in an emailed statement. This attack follows the incident at the beginning of February when more than 800 people invaded the operation, leading to almost a dozen people dying at one of the pits, according to the company.