ADT Ltd., a UK security and car auction group, faces opposition from Western Resources Inc., a leading ADT shareholder, a British newspaper said.

The Times reported that Western Resources, a US utility company which holds 24 percent of ADT, has said it objects to the agreement and intends blocking it.

In a filing with the Securities & Exchange Commission, the company said that the all-share nature of the transaction made it unacceptable.

Last month Republic denied its acquisition of ADT was in danger of falling apart but a change in price was being discussed.

Bermuda resident Michael DeGroote holds a significant stake in Republic.

`Most improved' hotel Based on a Marriott Corp. ranking system, Marriott's Castle Harbour Resort has been recognised as "most improved'' Marriott hotel outside the US.

The rating is determined through the corporation's guest rating index, a customer satisfaction rating system based on guest comment cards. The latest result is based on ratings compiled from cards from April to June of 1996.

AON DECLARES DIVIDEND BUC Aon declares dividend Chicago-based Aon Corp. declared a quarterly dividend of 36 cents per common share.

The dividend is payable November 18 to shareholders of record October 17.

Aon, which has Bermuda operating subsidiaries, also declared per share dividends of 50 cents and 78.125 cents on the company's eight percent preferred and six and one-quarter percent preferred stock respectively, both payable November 1 to shareholders of record October 18.

COMPUTER WORKSHOP CON Computer workshop The Bermuda Small Business Development Corporation will host a workshop on the benefits of computerisation.

The workshop will focus on practical tools and common sense advice entrepreneurs can incorporate in their businesses.

The workshop will be held on Monday, October 7 from 1 p.m. to 5 p.m., at the Hamilton Princess.