According to the district administration, the curfew which was imposed late last night was relaxed from 4 PM to 6 PM this evening.
The authorities had initially imposed a night curfew yesterday from 6 PM to 6 AM in Amguri and Bijni areas of the district, but later extended it to an indefinite one.
The teenage girl was killed by unknown assailants yesterday at a place under Amguri police station in Chirang, where the curfew was imposed.
The other girl managed to escape and reported the matter to the villagers, who later on informed the Police.
Police arrested four persons in this connection, who were later identified as culprits by the other girl.
The four have been identified as Asadul Sikdar, Asmat Sikdar, Jahanubin Sheikh and Babul Talukdar.