Srinagar: Militants today shot dead three unarmed policemen, who had gone for investigating a crime in a village in Shopian district of Jammu and Kashmir.

"Three policemen -- one head constable and two constables -- were killed in a militant attack at Ashipora in Shopian district," a police officer said. He said the slain policemen were unarmed and had gone to the village for investigating a crime when militants opened fire on them. This is second militant attack on policemen within hours in Kashmir Valley.

Earlier in the day, ultras shot at and critically injured a police officer in Pattan area of Baramulla district. Sub Inspector Ghulam Mustafa was shot at and injured by two pistol-borne militants in a bus which was on its way to Pattan, a police official said.

The driver of the bus drove the bus to a local police post where the cops shifted their injured colleague to hospital, he said.