A car bomb blast killed a laborer and injured three others in the parking of the Peshawar airport in Pakistan's North West Frontier Province (NWFP), police said. The bomb was planted in a Suzuki Alto car, which exploded early Tuesday morning. Peshawar police chief Malik Asad Muhammad Saad described the explosion as a terrorist attack. The injured persons were admitted to a hospital in Peshawar. Saad said police were investigating but haven't so far arrested any one.