SAO PAULO (AP) — A congressional panel in Brazil has summoned directors of a company building a huge dam in the heart of the Amazon rain forest to explain the alleged presence of a brothel where women were forced to work in slave-like conditions, a spokesman for the lawmakers said Friday.

Vicente Bezerra, press adviser to the president of the panel, Congressman Arnaldo Jordy, said directors of the Belo Monte Construction Consortium have been called to “explain how a brothel could operate inside the area where the dam is being built.” They are expected to be questioned within the next two weeks.