Pakistani Interior Minister Rehman Malik Tuesday expressed fear that militants could carry out more attacks in the country, according to local TV channel reports. Talking to media after visiting PIMS hospital to inquire about the health of the injured in the suicide blast at the United Nations office in Islamabad Monday, Malik said militants want to destabilize Pakistan and expressed fear that they could carry out more attacks in the country. 'Taliban have turned into wounded snakes committing attacks in the country,' Malik said. Malik said Taliban leadership in Swat of North West Frontier Province had decided to carry out attacks after Eid ul-Fitr whereas militants in Waziristan tribal areas also vowed to take revenge of their former chief Baitullah Mehsud's killing. Therefore, militants could carry out more attacks countrywide. He also said that the person appeared before the media on Monday as Hakimullah Mehsud, the so-called new chief of Pakistan Taliban who had been reportedly killed in infighting, seems to be his brother. He said action against specific targets of Mehsud group of Taliban is underway and it will be expanded if needed. Malik said no one was allowed to challenge the government's writ and warned the militants to leave the country or otherwise get ready to face the consequences. At least five UN officials, a foreigner and two women among them, were killed and eight others injured on Monday when a suicide bomber dressed as a paramilitary soldier blew himself up after slipping through high security checkpoints at the main office of the World Food Programme in Pakistan's capital city of Islamabad. 