Maoists blew up two rail tracks between Bhalulata and Bishra in Orissa's Sundergarh district early on Wednesday, an official said.
"Two tracks have been blown up between Bhalulata and Bishra. Both the down and up tracks in the Howrah-Mumbai route were targeted," said VK Srivastav, divisional commercial manager of Chhatrapur division.
Maoists blew up the tracks using land mines at about 1.30 am. After the blast, eight wagons of a goods train derailed. The freight train was travelling from Tatanagar near Ranchi to Bilaspur in Chhattisgarh.