On 3 March 1942, PK-AFV, a Douglas DC-3-194 airliner operated by KNILM, was shot down over Western Australia by Imperial Japanese Navy Air Service fighter aircraft, resulting in the deaths of four passengers and the loss of diamonds worth an estimated A£150,000–300,000 (the equivalent of A$9.5–19 million in 2010). It is believed that the diamonds were stolen after the crash, although no-one has ever been convicted of stealing them.