Eleven men were injured in a bomb blast at an outdoor restaurant in Hub Friday evening. The Balochistan police said they suspected that the Balochistan Liberation Army (BLA) was behind the act. Ten injured men were rushed to Civil Hospital Karachi. Four were stated to be in critical condition. The police sealed off the exits from Hub in the meantime.According to the injured, the explosion occurred at hotel Taj Mahal in front of Hub police station. When the explosion occurred more than 25 people were at the hotel. DIG Khuzdar Parvez Zahoor told Daily Times that investigators found smell metal pellets from the locally made one-kilogramme bomb that had been attached to a timed device. Zahoor added that the BLA was suspected as it had used the same material in previous bomb blasts in Balochistan. Investigators have not ruled out the possibility that the attack was linked to a police operation that had been conducted for the last few days in Hub against a Karachi-based gangster. The operation was launched after a Hub SHO was killed last week. Injured Noshad told Daily Times that when the bomb exploded he was with a friend at the Taj Mahal. The bomb went off from under a table. He said the bomb was in a bag.