KARACHI, May 8: Police have found some evidence which may lead to the perpetrators of the Hyderi mosque bomb blast that left 14 dead and 96 others injured.

Talking to Dawn, Adviser to Chief Minister on Home Affairs, Aftab Shaikh, said: "We have some clues as we have found some piece of evidence. We are working on every lead and we will soon reach the culprits."

Commenting on sporadic incidents of violence, he appealed to the people to give police some time to carry out the investigations. He assured that those responsible for the crime would be arrested soon. He said that sketch of the suicide bomber had been prepared. According to the witness, the suicide bomber was wearing Jubba and Amama and had long hairs.

Mr Shaikh did not rule out the possibility of involvement of the group, which had attacked an Imambargah in Quetta recently.

Police investigators, with the help of doctors, again examined the mutilated flesh of two unidentified men and said that the remains of one were completely burnt and blackened which suggested that he was the carrier of the bomb. The limbs of the man, standing next to the suicide bomber, were also mutilated and could not be identified. No claimant so far has turned up, an investigator said.

He said that toe and foot were found from the mutilated flesh which suggested that they were of different persons. "On these findings, we are sure that the pieces of flesh were of two persons, one is believed to be the suicide bomber and the other was standing beside him," he added.

An investigator in the Investigation Wing said that the team of army's bomb disposal squad visited the site and concluded that the bomb weighed 2.5 to 4 kilograms. Dynamite sticks were used in the bomb which was detonated by the suicide bomber.

An investigator of the Crime Investigation Department (CID) ruled out such arguments and said that it was committed by any of the sectarian groups. They had changed their modus operendi and committed a suicide attack. He said that jihadi elements could also not be involved as they were supporting the unity among Muslims in the international scenario. In Iraq, Shia and Sunni were struggling jointly against the western forces. Jihadi elements wanted to inflict losses to western powers and they could not think of creating a gulf between the two Muslim sects by carrying out such attacks.

He said: "We suspect the involvement of any of the banned sectarian groups in the Karachi blast. Even though they had attacked Imambargahs in the past and resorted to indiscriminate firing at worshippers, the suicide attack might be a change in their approach."

However, a senior police official said that the investigations were being carried out with open-mind and all angles were being examined. "We cannot rule out the possibility of involvement of any group and we are not able to blame anyone group at the preliminary stage of investigation process."