KARACHI - The police have arrested four suspects allegedly involved in bomb blasts that shattered calm in the metropolis on Monday. Police claimed to have arrested four alleged suspects involved in the series of blasts just a moment after the incident but the identity and affiliation of the accused were yet to be disclosed. On the other hand, Sindh Home Minister Dr. Zulfiqar Mirza held a press conference along with senior police officials and reaffirmed these arrests. Meanwhile, police have registered seven cases against unidentified terrorists in four different police stations under the Terrorism and Explosive Act. Mirza said that low-intensity bombs blasts injured 43 people most of them discharged from hospitals after initial treatment while some six to seven wounded persons were still under treatment. When asked about the investigation, Dr Mirza said, "We have a James Bond (Saud Mirza, Chief of Crime Investigation Department), who will produce the inquiry report of the case in near future as after the completion of probe." The minister ruled out the involvement of Baitullah Mehsud, chief of Tehreek-e-Taliban Pakistan (TTP), and said culprits have used firecrackers along with explosives in the blasts. He said the investigators have revealed some evidence indicating the motorcycle riding terrorists were wearing helmets and threw bombs with the difference of one-and-a-half minute. Dr Mirza added the people, whose vehicles were used in the blasts, contacted themselves with the investigators. The important evidences found by the police were kept in secrete, he pointed out. He said that stolen motorcycles and cars were used to carry out the blasts.