NEW DELHI: Maoists went on a rampage in rebel-dominated areas in Bihar and Orissa on Monday during a nationwide bandh protesting US President Barack Obama ’s India visit.Two cops were killed and five injured in Bihar since Sunday midnight. The cops were part of the bomb disposal squad of the Bihar Military Police. They were killed while trying to defuse a bomb in the premises of the BDO office at Gaya’s Banke Bazar. Two Special Auxiliary Police jawans, an elite force comprising ex-armymen raised to combat Maoists, were injured. Three TV crew were also injured.The violence on the eve of fifth phase of the Bihar assembly poll sent jitters among security agencies. On Tuesday, 35 assembly constituencies will go to polls. Bihar chief electoral officer Sudhir Kumar Rakesh and DGP Neelmani reviewed the security situation.Between Gorul and Kurhani stations on the Hajipur-Muzaffarpur route around 2am on Monday, Maoists blew railway track. No casualty was, however, reported. Maoists also torched four trucks on GT Road and attacked a camp of paramilitary forces at Gaya’s Magra village.