Armed Maoists blew up two school buildings early on Thursday in the Naxal-hit Aurangabad district,police said. Over 200 ultras surrounded a state-run school at Chandaur and blasted the building with dynamites in the wee hours,district SP N K Tiwari said. In another attack,the Naxalites detonated dynamites to blow up another school building at Belowa early morning,he said. However,there are no reports of any injury or casualty. A combing operation has been launched in the area to nab the ultras.