Ten wagons of a goods train got derailed when Maoists blew up a railway track near Kurhani railway station in Hajipur-Muzaffarpur section of East-Central Railway in Bihar's Muzaffarpur district early Monday, DGP Neelmani said.
Over 50 ultras triggered a dynamite blast blowing up railway track near Kurhani station, he said.
The wagons of a goods train, which passed over that track after the blast got derailed disrupting movement of rail traffic since 3 am on Monday.
Trains were being diverted from Hajipur to Muzaffarpur via Sahpur-Patori station, he said.
Meanwhile, rail traffic was restored on Mughalsarai section under Mughalsarai division of ECR, which was affected following Maoists threat to plant bombs during a bandh call by them.
Bomb disposal squad after thorough checking of the tracks between Ismailpur and Rafigunj station found that there was no bomb planted on the track, Neelmani said, adding, following which the authorities decided to allow movement of trains.
Over 100 ultras commanded the drivers and helpers of the truck to leave their vehicles, sprayed petrol and kerosene and burned four trucks near Amas police station in the district. Maoists also blasted the block office at Banke Bazar in the district from where posters were recovered against US President Barack Obama's visit to India.
In the third incident reported from the district, the heavily armed ultras exchanged fire with security personnel at Maigra high school of Dumaria police station in the district. No casualty was, however, reported in any of these incidents, official sources said.
Commandos of Special Task Force of Bihar Police assisted by CRPF personnel were engaged in combing operations against the Maoists in the area.