The armies of India and Pakistan trade heavy gunfire in Jammu and Kashmir on Friday, leaving three civilians dead and many injured.The armies of two countries traded heavy gunfire in R S Pura and Ramgarh sectors along the International border.The fresh exchange of fire took place a day after Director General (DG) Border Security Force (BSF) said the situation is tense on the border.Yesterday, a BSF soldier and three civilians were killed and at least five civilians injured in fire on both sides of the divide. While a BSF soldier and a minor girl were killed in RS Pura and Arnia sectors, Pakistan said that two women were killed in "unprovoked" Indian fire and five civilians, including three women were injured. (PTK).