sentences:  On 18 September she stopped a group of three fishing trawlers west-north-west of St.Kilda.She sank two with gunfire, the 326-ton "Arlita" and the 295-ton "Lord Minto" after confiscating their radios and fishing gear but allowing their crews to evacuate.A third trawler, "Nancy Hague", was allowed to proceed after taking on the crews of the other vessels.