ISLAMABAD Three high-profile terrorists have reportedly been sent from the tribal areas to target the Prime Ministers House situated in the Federal Capital, police sources said. According to reliable sources, Punjab-based intelligence agencies informed the Islamabad Capital Territory Police that three high-profile terrorists could target the Prime Minister House by carrying suicide attacks. Upon this, the security of Islamabad particularly around red zone has been further beefed up. Intelligence sources said that one out of three terrorists could attack an investigation centre, Multan. According to sources, the above mentioned terrorists were identified as Qari Ubaid, Tallah and Tayyab. It was also learnt that the provincial Government also wrote a letter to Islamabad police and informed it about the terrorists mission.