A 39-year-old construction worker was killed while two of his colleagues were injured after a trench collapsed at a sewer line construction site in Karen, Nairobi. Crime scene investigators visited and processed the site as police launched investigations into the cause of the collapse. The body of the deceased was moved to Montezuma Funeral Home, where it is awaiting a post-mortem examination. Meanwhile, police have launched investigations after the body of an unidentified middle-aged man was found along the Southern Bypass in Nairobi in a suspected murder. Crime Scene Investigation (CSI) officers processed the scene before the body was moved to the Nairobi Funeral Home for preservation, identification and a post-mortem examination.