ISLAMABAD , Pakistan ( CNN ) -- Pakistani forces in the last month foiled a planned attack on the parliament building , the intelligence agency and other federal institutions , the country 's interior minister told CNN Sunday . Pakistan 's parliament building was one target of a planned attack , an official says . In the last four weeks , authorities arrested three men with suicide vests who were plotting to carry out the attacks , said Interior Minister Rehman Malik . Malik would not say exactly when the men were caught . Pakistan is in the midst of an intense military offensive against Taliban militants . The militants are suspected of launching attacks inside Pakistan and in neighboring Afghanistan from their haven in the mountainous tribal region along the northwestern border . On Sunday , a suicide bomber in volatile northwestern Pakistan killed at three people and wounded 15 others , police said . The bombing rocked the Pakistani city of Peshawar , capital of North West Frontier Province . The incident took place when police approached a man acting suspiciously . The man ran away , police chased him and a gunfight ensued . The man ran out of bullets and blew himself up . Two women and seven children were among the injured . Remains of the alleged attacker were found , police said . Five houses were destroyed . The incident follows a car bombing on Saturday in Peshawar that killed two people , including the spokesman for an extremist group called Ansar ul Islam . Two suspects are in custody . Malik said Sunday the government 's anti-Taliban operations will continue during Ramadan , the Muslim holy month considered to be a time of peace . Militants in North Waziristan , part of the tribal region , have said they will observe a unilateral ceasefire throughout the month . `` There will not be a ceasefire during Ramadan . We are not interested in a ceasefire , '' Malik said . `` They have n't kept their commitment in the past . We will continue targeted actions against the Taliban . '' Malik also said the Taliban killed the father-in-law of its leader Baitullah Mehsud and several other relatives , accusing them of leaking information about his whereabouts . Pakistan and U.S. officials contend Mehsud was killed in an August 5 drone attack in Waziristan at his father-in-law 's house . The Taliban claims Mehsud is alive but ill .
NEW : Suicide bomber in northwestern North Waziristan kills Three , authorities say . NEW : Suspect blew himself up after running out of bullets in gunfight , police say . Muslim authorities say they stopped plot on government buildings . at least three men plotted to carry out attacks , says Interior Minister Ramadan .