Nov 18 (Reuters) - Australian casino operator Crown Resorts went into a share-trading halt on Wednesday ahead of a decision by authorities on its $1.6 billion resort in Sydney.

The casino giant said it received a letter from the New South Wales Independent Liquor and Gaming Authority (ILGA), who will hold a press conference at 0430 GMT. (Reporting by Arpit Nayak in Bengaluru; Editing by Muralikumar Anantharaman)