Front Line is seriously concerned following reports of the arbitrary detention and intimidation of a group of human rights defenders opposed to the construction of the Mapithel Dam in Manipur State.These include T. Dewal from the village of Itham, L. Bipin from Tumukhong, L. Bobojit and H. Kendra Luwang from Moirangpurel. All are members of the Mapithel Dam Affected Ching-Tam Organization (MDACTO), an organisation which defends the rights of communities affected by the dam project.