ISLAMABAD Drawing parallel between the bomb blasts on 10th of Muharram and later on Chehlum in Karachi, Federal Minister for Interior Rehman Malik said on Tuesday that a joint investigation teams had found some leads and involvement of foreign hand could not be ruled out. Winding up the discussion in National Assembly on bomb blasts on the occasion of Chehlum in Karachi, the Minister said that the investigation conducted so far revealed that the bomb blast on Ashura Day and the explosion on the occasion of Chehlum in Karachi had similarities. He sought three-week time from the House to furnish a detailed report on the Karachi massacre and said that the joint investigation teams had made a significant progress in this regard. Malik said the primary investigation into the Ashura blast identified a group Jandullah. The law enforcement agencies arrested four persons of the group as well as 37 others for ransacking Boltan Market, Karachi. The Minister said the Shia-Sunni strife was not new in Pakistan since the banned outfits Lashkar-e-Jhengvi, Sipha-e-Sahaba and Jesh Muhammad had always been attacking the processions of Shia community every year in Muharram in different parts of the country. As far as the law and order in Karachi was concerned, he said, incidents were taking place every year in Karachi for the last 15 years. He said the terrorists escaped from Swat, FATA, South Waziristan and other parts of troubled regions after the successful military operation and they have taken refuge in big cities of the country. The foreigners including Pathans, Bangalis and others have also taken refuge in Karachi and indulged in criminal activities there, the minister added. Malik said that the government had taken several steps to curb the activities of terrorists and extremists, adding the National Crisis Management Cell was passing on alerts on day-to-day basis to federal and provincial governments to foil the nefarious designs of anti-state elements. Appreciating the performance of law enforcement and intelligence agencies, he said due to timely reports of intelligence agencies and actions by law enforcement agencies a number of terrorist bids including attack on Parliament House were foiled. He said the Interior Ministry and law enforcement agencies should not be blamed for everything, the law and order was the provincial governments subject and the Federal Interior Ministry was just assisting them. Instead of blaming the government, we should also appreciate the good steps being taken to check the growing incidents of terrorism, and added that the government has successfully dismantled terrorist groups. The Minister said that due to concerted efforts law and order situation was improving but the risk of terrorist activities was still prevailing. Earlier, taking part on the debate on Karachi violence, Fauzia Wahab, Sheikh Aftab, Aftab Ahmad Khan Sherpao and Akhunzada Chitan stressed the need for improving the police system in the city and increase in the number of police personnel to deal with the situation.