EXHIBIT 99.4

FOR IMMEDIATE RELEASE

                          TYCO APPOINTS WILLIAM B. LYTTON
                  EXECUTIVE VICE PRESIDENT AND GENERAL COUNSEL

 FORMER SVP AND GENERAL COUNSEL AT INTERNATIONAL PAPER BRINGS TO TYCO WIDE RANGE
                       CORPORATE AND GOVERNMENT EXPERIENCE

PEMBROKE, BERMUDA - SEPTEMBER 12, 2002 - Tyco International Ltd. (NYSE - TYC,
BSX - TYC, LSE - TYI) today announced that William B. Lytton has been appointed
Executive Vice President and General Counsel for the company. Mr. Lytton has a
wide range of experience as a corporate counsel at major industrial companies
and most recently served as Senior Vice President and General Counsel for
International Paper Company. Mr. Lytton is also a former federal prosecutor who
served eight and a half years in Chicago and Philadelphia.

Tyco's Chairman and Chief Executive Officer, Edward D. Breen, said, "To fulfill
its potential as a great company, Tyco must have the best possible management
team. In choosing a General Counsel for Tyco, I wanted a person with outstanding
credentials as a corporate counsel and an impeccable reputation for personal
integrity. Bill clearly fulfills both criteria. He is a man who can be trusted
to make the right decisions on the challenges and opportunities facing the
company, and he will play a vital role in helping us to establish and maintain
the best practices of corporate governance. I'm very pleased that he is now part
of the team we are building for the future."

Mr. Lytton said, "I'm very excited to be joining Ed Breen and his new team at
this critical juncture in Tyco's history. I share Ed's commitment to
establishing the highest standards of corporate governance and integrity at
Tyco. This is a company with many strengths and opportunities. I look forward to
working with the people throughout the organization to help Tyco realize its
full potential."

Mr. Lytton succeeds Irving Gutin, who had been asked to assume the role of
General Counsel in June on a temporary basis. Mr. Gutin is retiring after more
than 28 years of service to Tyco.

Mr. Lytton has served as Senior Vice President and General Counsel for
International Paper, the world's largest forest-products company, since 1999.
Mr. Lytton began his tenure with the company in 1996, as vice president and
general counsel.

Previously, Mr. Lytton held general counsel positions at operating divisions of
Lockheed Martin and Martin Marietta, as well as at GE Aerospace. He has worked
throughout federal government, including an assignment as deputy special
counselor to President Ronald Reagan in 1987.

                                     99.4-1


Mr. Lytton received his undergraduate degree from Georgetown University in 1970
and a law degree from American University in 1973. He is chair of the American
Corporate Counsel Association's board of directors and a member of the
Washington, DC, and Pennsylvania Bars.

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 medical device 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 may contain 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 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, for the quarter ended June 30, 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:       Gary Holmes (Media)
               212-424-1314

               Kathy Manning (Investors)
               603-778-9700

                                     99.4-2