Maoists blew up three school buildings in Giridih and Palamau districts in poll-bound Jharkhand and a state-run school in Aurangabad district in neighbouring Bihar, police said on Tuesday.
A group of Maoists late last night triggered a blast at Manjiladih Primary School in Jharkhand's Giridih district destroying the school building, district Superintendent of Police Ravi Kant Dhan said on Tuesday.
A police team has been rushed to the spot, he added.
A separate group of Maoists also blew up two middle schools at Dhigcha and Kukukala villages in Palamau district last night, district Superintendent of Police, Jatin Narwal, told newsmen in Medininagar.
Borders with Bihar, Uttar Pradesh and Chhattisgarh have been sealed as the police launched anti-naxal operations, he added.
Palamau goes to polls in the last phase on December 18 in the five-phase assembly polls in Jharkhand beginning tomorrow. Elections will be held in Giridih on December 2 and 8.
Maoists have been attacking schools to prevent security forces from using them as shelters during their anti-naxal operations.
According to reports, Maoist have also pasted posters in Palamau district calling for a poll boycott.