One person was killed and six others were injured when an explosion occurred at a cracker manufacturing unit in Sitapur district, police said today.
            Jalaluddin was killed when fire broke at his residence, where the cracker manufacturing unit was also being run, triggering an explosion in Daulatpur village yesterday, they said.
            The injured were admitted to primary health centre, from where three persons, who sustained serious injuries, were referred to Sitapur district hospital.