ISLAMABAD, Oct. 13 (Xinhua) -- Pakistani Interior Minister Rehman Malik said Tuesday the evidences collected from recent terrorists attacks in Peshawar, Islamabad and Rawalpindi have proved that Al-Qaeda and banned outfit Tehrik-e-Taliban Pakistan (TTP) were behind these attacks, the official APP news agency reported.

    Talking to media, the interior minister said the investigation into suicide attacks on World Food Program (WFP) office in Islamabad and in Khyber market of Peshawar and terrorist attack onthe army headquarters in Rawalpindi have proved the involvement ofTTP from South Waziristan tribal agency in Pakistan's northwest.

    He said that the banned outfits Lashkar-e-Jehngvi, Jesh Muhammad and Sipa Sahaba have links with TTP and Al-Qaeda. They were carrying out terrorist attacks on their directions to destabilize the government.

    Malik said the government has taken firm decision to undertake military operation in South Waziristan to eliminate all the terrorists and militants.

    He said political leadership has decided the launch of Waziristan operation but the timings will be decided by army chief.

    He said the military operation in Swat and Malakand division was a success story and this was acknowledged by the nation and the world community.

    The political and military leadership of Pakistan has finally decided to carry out military operation in restive South Waziristan tribal areas after a meeting in presidency on Saturday,chaired by Pakistani President Asif Ali Zardari and attended by Prime Minister Syed Yusuf Raza Gilani, Chief of Army Staff Ashfaq Parvez Kayani, Foreign Minister Shah Mehmood Qureshi and Director General of Inter Services Intelligence (ISI) Ahmed Shuja Pasha.

    Malik further said that the two suspected persons arrested for their alleged involvement in a suicide blast at WFP in Islamabad were being interrogated adding that investigation was moving in right direction.

    The minister said that the incident occurred due to security lapse on behalf of Phoenix, a private security company. "I have summoned a meeting of private security companies, operating in Islamabad next week to ensure foolproof security for the residentsof the Federal Capital," he said.

    He said the investigation report into the Islamabad blast will be submitted to the United Nations next week. He said all the offices of the United Nations will be shifted to diplomatic enclave in order to avoid any untoward incident in future, adding that security of UN office and foreigners is top priority of the government.