The incident occurred on September 9, 2025, at around 11 a.m., when laborers were reinforcing a retaining wall built to hold back soil. Some workers were positioned beneath the wall, while others were adding soil on top when it suddenly gave way.
Security officials, local authorities, and the Rwanda Investigation Bureau (RIB) arrived swiftly at the scene to provide reassurance and launch investigations.
Nyamasheke District Mayor, Narcisse Mupenzi, confirmed the arrests, saying: ' Ongoing investigation has led to the arrest of two individuals.'
The suspects are reported to be the site engineer and supervisor. Sources indicate that 13 injured workers including eight in critical condition were transferred to Kibogora Hospital for treatment.
Belyse Uwingabiye, human resources manager at DNG Ltd, the company contracted to build the plant, said about 50 employees had been working on the wall at the time.
Florien Ndahayo, the lead mason on site, described the incident as a tragic accident, noting that the wall had been built in line with soil test results and the approved design.
IGIHE
Source : https://en.igihe.com/news/article/two-arrested-after-wall-collapse-kills-eight-in-nyamasheke