Tamil civilians are at Menik Farm refugee camp on the outskirts of the northern town of Vavuniya , Sri Lanka . Group : More than 280,000 displaced Tamil civilians living in refugee camps . Sri Lanka says the Human Rights Watch report is overstated . Human Rights Watch says NGO workers are discouraged from discussing abuses . Group reported health problems created by inconsistent water supply .
Group : More than 280,000 displaced Tamil civilians living in refugee camps . Sri Lanka says the Human Rights Watch report is overstated . Human Rights Watch says NGO workers are discouraged from discussing abuses . Group reported health problems created by inconsistent water supply .