SANKHUWASABHA, June 13: An unknown group attacked the administrative office of Arun Third hydropower project with socket bombs at around 8:45 pm on Tuesday night .
“Explosion marks were discovered at the site, from which we can assume that at least three socket bombs were exploded," said Deputy Superintendent of Police Shyam Kumar Saru Magar of District Police Office, Sankhuwasabha.
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There has been, however, no substantial damage on the project premises. Earlier on April 29, an explosion had hit the fence, damaging the boundary wall. No one has taken responsibility for these two incidents till date.
Police said they are investigating the case.