A week after declaring Kamalpur subdivision avian flu- free zone, fresh outbreak of the deadly disease has been reported at Mohanpur and its adjacent villages in West Tripura district. The most affected areas were Kalacherra, Mantala, Bijoynagar, Mohinipur, Mohanpur, Ishanpur and Hejamar, close to Bangladesh. "The Bhopal-based High Security Animal Disease Laboratory confirmed the outbreak at Mohanpur where eight chicks died mysteriously recently', said U Vankeswarlu, State's principal secretary of Animal Resource Development (SRD) here on Tuesday.