an Entity references as follows:
The Huntly rail bridge bombing occurred on the Glen Afton (or Awaroa) Branch, near Huntly, New Zealand around 3 AM on 30 April 1951, when high explosives were set off on a railway bridge. The bombing took place amid the 1951 New Zealand waterfront dispute, an industrial dispute over the working conditions and wages of dockworkers. Characterised by the-then Prime Minister Sidney Holland as an act of terrorism, the bombing caused no casualties, even though a morning passenger train ran over the weakened bridge. The perpetrators remain unknown.