In India, at least 22 police officers were killed and more than 30 others injured after a pitched, four-hour gun battle with hundreds of Maoist fighters on Sunday. The police had been carrying out anti-insurgency operations in the central state of Chhattisgarh when they were ambushed by the Maoists. The rebels have been waging a four-decade-long guerrilla campaign in support of India’s Indigenous people and other marginalized groups.