KOZHIKODE: A bomb was hurled at a house in Panthirikkara in Perambra. Houses of two BJP activists were attacked early Thursday morning. It is not known who are behind the incident. A bomb was hurled at CPM leader and panchayat member K P Jayesh’s house the other day. No casualty was reported. The police have registered a case and probe has started on the incident. A panic situation is prevailing in the area after the hartal observed by Sabarimala Karma Samithi.