In Pakistan, atleast 15 people were killed and 80 injured in a series of Suicide attacks targeting Shia Muslims in cities of Lahore and Karachi.In the first attack in the eastern city of Lahore, a teenage suicide bomber blew himself up when he was challenged by policemen guarding a Shia procession. The attack occurred at Lahori Gate near Karbala Gamay Shah, a Shia 'imambargah' or prayer hall yesterday. Lahore Police chief said .Thirteen people, including a woman and four policemen, were among the dead. Over 70 people were injured. The second bomber struck a short while later, targeting a police van in the Malir area of Karachi.Two policemen were killed and five others, including three policemen, injured in the attack. The attacker, who was on a motorcycle, rammed into the police van shortly after two buses carrying Shia Muslims returning from a procession had passed the area. Search and sweep operations were being conducted in the city to trace terror suspects in two cities.