At least three people were killed and two others injured in a militant attack on a village in Manipur on Tuesday, police said."Heavily armed guerrillas attacked the people, killing three on the spot, in Ukhrul district bordering Myanmar. Two others were injured in the attack," a police official said.The militants attacked the village when paramilitary forces were patrolling in the nearby area, the official added.Further details were awaited.Manipur, which shares a 398-km unfenced border with Myanmar, has about 40 militant outfits. More than 20 armed groups have tripartite ceasefire agreements with the central and state governments.