Minera Yanacocha [joint venture of Buenaventura and Newmont]…said that about 750 protesters entered land owned by the company Thursday, destroying a telephone tower and kidnapping a security guard. The company said that police are holding four people…in connection with the protests in the Conga region of the company property. Violent protests led Minera Yanacocha…to put the Conga mine [joint venture of Newmont & Buenaventura] construction work on hold in late 2011. Meanwhile Minera Yanacocha is building water reservoirs to help calm concerns from local residents…