An improvised explosive device detonated, targeting the Tumlingtar-based office of Arun-3 Hydropower Project in Sankhuwasabha district on Saturday night.

The explosion caused minor damages to the office. Sankhuwasabha's Chief District Officer Shibaraj Joshi said an unidentified group exploded the IED at around 12:00 noon and a search for them is underway. RSS