Speaking to ORF radio, Stocker said officials aimed to set stricter eligibility rules for possession and purchase of arms after a 21-year-old Austrian man on Tuesday shot dead ten people at a high school in the city of Graz before killing himself.

Austria came to a standstill on Wednesday to mourn victims of one of the worst outbreaks of violence in its modern history, as authorities search for clues to why a 21-year-old gunman shot dead 10 people at his former high school before killing himself.