Chittagong Bureau : Two persons were killed in separate incidents in the city on Saturday . Some miscreants killed one juvenile worker of a trading house. The incident was occurred at Moulvi bazaar under chandgaon thana at about 10 am. The worker identified as Md. Manjil, sources said. Police sources said he was killed by hecking inside the trading house of Moulvi bazaar. The victim hails from Barishad, Faridpur union and son of Lal Miah. His brother-in-law Basir has lodged a case before the chandgaon thana in connection. Police sent his body to morgue for autopsy. Meanwhile one construction labour Md. Nur Hossain (25) died of falling from the roof of underconstruction building at Amirbagh of Chowckbazar under chowkbazar thana. Police sources said Nur Hossain fell down from the roof of 3rd floor of the building and received fatal injury.