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                                                                    EXHIBIT 99.1

FOR IMMEDIATE RELEASE

                           TYCO APPOINTS JOHN A. KROL,
          FORMER CHAIRMAN AND CEO OF E.I. DUPONT, TO BOARD OF DIRECTORS

PEMBROKE, BERMUDA - AUGUST 6, 2002 - Tyco International Ltd. (NYSE - TYC,
BSX-TYC, LSE-TYI) today announced that the Company has appointed John A. Krol,
the former Chairman and Chief Executive of E.I. du Pont de Nemours & Company, to
Tyco's Board of Directors.

Ed Breen, the newly appointed Chairman and CEO of Tyco, said, "Jack Krol
personifies the highest standards of corporate leadership. He has an
international reputation not only for his intellect and business skills but also
for his honesty and integrity. I have committed Tyco to establishing the best
corporate governance practices, while also building our businesses for our
shareholders, employees and customers. As a new member of our Board of Directors
and a valued advisor to me and our management team, Jack Krol will be a key
figure in helping achieve both of those goals. I have the greatest respect and
admiration for Jack's many accomplishments over the years and welcome him to the
Board."

Mr. Krol, 65, joined E.I. du Pont de Nemours & Company in 1963 as a chemist,
working his way up through the company to senior management positions, and was
appointed Vice Chairman of the company in 1992 and Chairman and CEO in 1998.
E.I. du Pont Nemours is a global research and technology-based company serving
worldwide markets, including food and nutrition, health care, agriculture,
fashion and apparel, home and construction, electronics and transportation.

Mr. Krol also serves on the Board of Directors for Ace Ltd., Armstrong Holdings,
Inc., MeadWestvaco Corporation, Milliken & Company and Molecular Circuitry, Inc.

ABOUT TYCO INTERNATIONAL LTD.

Tyco International Ltd. is a diversified manufacturing and service company. Tyco
is the world's largest manufacturer and servicer of electrical and electronic
components; the world's largest designer, manufacturer, installer and servicer
of undersea telecommunications systems; the world's largest manufacturer,
installer and provider of fire protection systems and electronic security
services; and the world's largest manufacturer of specialty valves. Tyco also
holds strong leadership positions in disposable medical products and plastics
and adhesives. Tyco operates in more than 100 countries and had fiscal 2001
revenues from continuing operations of approximately $34 billion.

FORWARD LOOKING STATEMENTS

This release contains certain "forward-looking statements" within the meaning of
the United States Private Securities Litigation Reform Act of 1995. These
statements are based on management's current expectations and are subject to
risks, uncertainty and changes in circumstances, which may cause actual results,
performance or achievements to differ materially

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from anticipated results, performance or achievements. All statements contained
herein that are not clearly historical in nature are forward looking and the
words "anticipate," "believe," "expect," "estimate," "plan," and similar
expressions are generally intended to identify forward-looking statements. The
forward-looking statements in this release include statements addressing the
following subjects: future financial condition and operating results.

Economic, business, competitive and/or regulatory factors affecting Tyco's
businesses are examples of factors, among others, that could cause actual
results to differ materially from those described in the forward-looking
statements.

More detailed information about these and other factors is set forth in Tyco's
Annual Report on Form 10-K for the fiscal year ended September 30, 2001, and in
Tyco's Quarterly Report on Form 10-Q, as amended, for the quarter ended March
31, 2002. Tyco is under no obligation to (and expressly disclaims any such
obligation to) update or alter its forward-looking statements whether as a
result of new information, future events or otherwise.

                                      # # #

Contact:       Walter Montgomery (Media)
               212-424-1314

               Kathy Manning (Investors)
               603-778-9700

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