At least four people -- three pilgrims and one Ponywallah were killed and eight injured on Saturday morning in a landslide on old track to Mata Vaishno Devi Shrine in Jammu region.A landslide hit the old track to the Mata Vaishno Devi Shrine in Katra district, police said."At least 12 people were hit by the landslide," a police official said.The injured have been shifted to a hospital, the official said.