was the sinking of a French-built SS Patria by the Zionist Paramilitary Group, Haganah, killing 267 people and injuring 172. Patria was carrying about 1,800 Jewish refugees from Europe whom the British authorities were deporting from Palestine to Mauritius because they lacked entry permits. Zionist organizations opposed the deportation so Haganah planted a bomb intended to disable the ship to prevent it from leaving Haifa after Irgun's attempt to plant a bomb was unsuccessful. They claimed to have miscalculated the effects of the explosion causing the SS Patria to sink.