Even as Maoists are observing Martyrs’ Week from July 30, some posters put up by Red rebels surfaced in Nabarangpur district on Monday. The Maoist posters and leaflets were found along State Highway 40, triggering panic among locals. The hand-written posters, claimed to be of Mainpur Divisional Committee of the outlawed CPI (Maoist), were found on highway near Jodenga village under Raighar police station in district. In posters, Maoists have appealed to people to observe ongoing Martyrs’ Week and make it a success. They also demanded a halt to combing operations bysecurity forces. The ultras also threatened police informers of dire consequences and said they would be punished in Praja Courts. Getting information, the Raighar police rushed to spot and seized posters. The cops have initiated an investigation. Notably, security forces are on high alert and beefed up security in Leftwing extremist hit districts of State but no untoward incident have been reported from any part.