Federal Interior Minister Rehman A. Malik Thursday said saboteurs are making efforts to carry out a terrorist activity in the federal capital. Talking to media outside Parliament House here in Islamabad, he said the terrorists arrested today planned to open fire perching on a building. The leaders of Awami National Party (ANP) are feared to be attacked in Karachi, he warned. It should be mentioned here that police arrested two miscreants and seized an explosive-filled vehicle from the limits of Golra Police Station in the federal capital this morning.