Stepping up their attack on police establishments and government structures, armed Maoists blew up a police station in Orissa's Koraput district, police said today.

Around 30 heavily armed rebels raided the police station at Kakiriguma, about 40 km from here, around last mid-night and triggered a powerful explosion to blow up the structure, Laxmipur SDPO Y Jagannath Rao said.

Shouting slogans against the government and security forces, the ultras also torched a police jeep parked in the premises before disappearing into nearby forest, he said.

However, the Maoists did not harm anyone in course of their attack. The lone sentry manning the police station escaped as he reportedly fled the scene after sighting the marauding extremists.

Police reinforcement had rushed to the spot, while combing operation and patrolling intensified in the area to nab the ultras.