A 30-year-old worker was killed in a gas cylinder explosion at a steel factory in Bashbaria area of Sitakunda upazila in Chattogram Thursday noon. The deceased was identified as Ranjit Das, son of Shridam Das of Kumira Ghatghar area of the upazila. Police said the gas cylinder went off when Ranjit was cutting scrap iron inside the rod factory of GPH Steel Ltd around 12pm, leaving Ranjit dead on spot. The body was sent to Chattogram Medical College and Hospital (CMCH) morgue, said Ashraful Karim, assistant superintendent of Police (ASP) of Sitakunda circle.