The Border Security Force (BSF) Sunday seized three kg of heroin, valued at Rs.15 crore in the international market, from the Amritsar sector of the India-Pakistan border, an official said.A BSF spokesman said the seizure was made near the Fatehpur border out post, nearly 300 km from Chandigarh.BSF troopers noticed some movement in the area near the international border despite the darkness and dense fog. They fired in that direction.A search of the area later led to the recovery of the heroin. The suspected smugglers escaped under the cover of the fog and darkness.With the latest seizure, the BSF has seized 361 kg of heroin this year in the Punjab sector. A total of 322 kg of the narcotic was seized in 2013.