Two children were killed in a Minneapolis school shooting that Minnesota governor Tim Walz said was ‘unthinkable but that’s all too common, not just in Minnesota but across this country’. Seventeen other people were injured – 14 of them children – but were expected to survive, police said. The attack at a Catholic school occurred during a mass on Wednesday marking the first week of classes. Walz said: ‘We’ll redouble ourselves to do the best we can to understand what we can do to prevent any parent from having to receive the calls they received today’