Barrick Gold said in a letter to the United Nations Human Rights Council on Thursday that allegations of human rights violations at its North Mara gold mine were “misdirected, unfounded” and “lacked substance”.

The UNHRC’s special procedures branch had sent a letter to the Canadian gold miner in April, saying it had received information about allegations of killings, assault, torture, sexual abuse and violence against women and girls, among others, committed by security forces and private security contractors at the North Mara mine in northern Tanzania.