Muttahida Qaumi Movement (MQM) Chief Altaf Hussain has termed the navy bus attack here an act of 'open terrorism. In a statement issued from the partys international secretariat in London, the Muttahida Qaumi Movement Chief Altaf Hussain said that Pakistan Navy officials were being targeted under an organised conspiracy. He condemned the attacks strongly. Altaf demanded the government take notice of the incident and punish those who were responsible for the attacks.