A sinkhole roughly 8–10 m wide and several metres deep has opened on the AJ Burkitt Reserve sporting oval in Heidelberg, directly adjacent to the North East Link tunnel alignment in Melbourne’s northeast. Victorian Infrastructure Delivery Authority has confirmed the “surface hole” is in the vicinity of active tunnelling operations, leading to a work pause while engineers and emergency crews carry out geotechnical investigations and monitoring. No injuries or structural damage have been reported, but the area remains fully cordoned off pending cause determination and stability assessment.

Deep borehole investigations for the UK’s geological disposal facility (GDF) for higher-activity radioactive waste are set to begin once the government confirms the first site selection, following a formal letter to the project manager. The programme will involve multi-kilometre boreholes to characterise deep rock formations and groundwater regimes, providing data on long-term containment performance and engineered barrier design. Early site choice will influence drilling logistics, monitoring networks and subsequent underground laboratory planning for the GDF.

Brazil’s Superior Court of Justice has reinstated criminal charges against former Vale CEO Fábio Schvartsman over the 25 January 2019 Brumadinho Córrego do Feijão tailings dam collapse, which killed more than 250 people and erased about US$19 billion from Vale’s market value in a single day. Federal prosecutors cited extensive internal documentation alleging Schvartsman assumed the risk of death by not acting on known instability issues at the upstream tailings structure, overturning a Minas Gerais court’s habeas corpus ruling. The decision restores 16 defendants, including ex‑Vale staff and TÜV SÜD consultants, with over 160 witnesses scheduled and hearings expected to run into next year, keeping corporate accountability for dam safety in sharp focus.