Koraput: A landmine blast killed four policemen in southeastern India on Wednesday, a senior officer said, with Maoists suspected of being behind the latest attack in the restive region.
A vehicle carrying 13 police officers hit the landmine as it travelled through Koraput district near the border between Odisha and Andhra Pradesh states.
Local police chief S Shyni told AFP that a "security operation is under way" but did not provide further details.
Images showed the charred frame of a vehicle overturned under a tree as locals looked on at the rescue efforts.
Odisha Chief Minister Naveen Patnaik took to Twitter to condemn the attack.
"Strongly condemn the cowardly act & condole martyrdom of police personnel in landmines blast. My deep sympathies with bereaved families," Patnaik said.
Thousands of armed Maoists -- inspired by Chinese revolutionary leader Mao Zedong -- are fighting the government for land, jobs and other rights for poor tribal groups, with thousands of lives lost in the decades-old insurgency.
The latest attack comes after suspected Maoist rebels killed three women, including a 14-year-old girl, in an explosion in central Chhatisgarh state earlier this month.
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