On Feb. 2, 1978, JTA reported that Palestinian terrorists had sabotaged Israeli exports and poisoned Jaffa oranges with mercury.
The poisoned oranges were discovered in the Netherlands, where 5 Dutch children were poisoned.
Hat tip: Twitter user @jewishevents
Image: Israel Government Press Office (GPO). Jaffa Oranges being loaded into hold of a ship in port at Ashdod. Moshe Milner, 11 January 1971.