An elderly man who was offering prayers was killed in a rocket-propelled bomb attack in Manipur's Moirang town today, the police said. Five others including a 13-year-old girl were injured in the attack on the lakeside town in Bishnupur district, 35 km from the state capital Imphal. She is the second minor injured in attacks in the last five days. The first minor was injured in a drone attack by suspected Kuki insurgents on Sunday, the police and the home department had said.