 On 25 June 1940 , Fraser , her sister HMCS Restigouche , and the cruiser Calcutta were returning from St. Jean de Luz after rescuing refugees trapped by the German Army ( Operation Ariel ) , when Fraser was rammed by Calcutta in the Gironde estuary . Struck forward of the bridge by the cruiser 's bow , Fraser was cut in half and sank immediately . All but 45 of the ship 's crew were rescued by Restigouche and other nearby ships . Many of the survivors from Fraser transferred that later summer to HMCS Margaree , and were lost when that vessel sank on 22 October 1940 as a result of a collision with the freighter MV Port Fairy . 
