Maoists blew up a forest beat house in Sundergarh district of Orissa today. According to Police, a group of armed ultras damaged the old building by a landmine blast in the interior forest under Godposh police station. However, no casualties or loss of property have been reported. It may be recalled that Maoists called two day bandh in six states including Orissa to press for a probe into the death of Naxal leader Azad.