The operations of PAC's forces deeper in the Basin, who kept indigenous workers in near slavery conditions through use of force and harsh treatment, was investigated by Roger Casement, the British consul-general in Peru. He had investigated labor conditions for natives in the Congo Free State when it was under King Leopold's control, reporting on the abuse of thousands of workers. His 1913 exposure of abuses of Peruvian workers caused a reaction against the company among the several British members of its board and many stockholders. The company struggled financially and lost backing in the UK. In addition, rubber seedlings had been smuggled out of the country and cultivated on plantations in Southeast Asia. As the plants matured, the competition undercut prices of the Peruvian product. With the decline of the rubber industry, many workers and merchants left Iquitos.