EXHIBIT 99.1

                                            
CONTACTS:
INVESTOR RELATIONS                             MEDIA RELATIONS
R. Jackson Blackstock                          Maryanne Kane
Senior Vice President                          Chief Communications Officer
Tyco International (US) Inc.                   Tyco International (US) Inc.
212-424-1344                                   508-747-0800



                TYCO SUBSTITUTES BANK DEBT FOR COMMERCIAL PAPER

    PEMBROKE, BERMUDA, FEBRUARY 4, 2002--Tyco International Ltd. (NYSE: TYC,
LSE: TYI, BSX: TYC) today announced that it will repurchase all of the company's
$4.5 billion commercial paper at its scheduled maturities. To fund these
purchases, Tyco will borrow under its $5.9 billion of existing bank facilities
with a term maturity of February 2003 as to $3.9 billion and February 2006 as to
the other $2.0 billion.

    L. Dennis Kozlowski, Tyco's Chairman and Chief Executive Officer, said,
"While the increased interest costs will reduce earnings by up to $0.02 per
share in fiscal 2002, by taking these actions we are enhancing Tyco's
flexibility, liquidity, and eliminating uncertainty about our ability to finance
our recently announced plan to unlock shareholder value. Additionally, the
company has projected remaining fiscal year 2002 free cash flow to be in excess
of $4 billion, of which a majority will be used to reduce existing
indebtedness."

ABOUT TYCO INTERNATIONAL

    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, financing and
leasing capital, and plastics and adhesives. Tyco operates in more than 100
countries and had fiscal 2001 revenues of approximately $36 billion.

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    THIS RELEASE CONTAINS "FORWARD-LOOKING STATEMENTS" WITHIN THE MEANING OF THE
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. ACTUAL RESULTS MAY VARY MATERIALLY FROM THE
EXPECTATIONS CONTAINED IN THE FORWARD-LOOKING STATEMENTS. ALL STATEMENTS
CONTAINED IN THIS RELEASE 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 FOLLOWING FACTORS, AMONG OTHERS, COULD CAUSE
ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE DESCRIBED IN THE FORWARD-LOOKING
STATEMENTS: ECONOMIC, BUSINESS, COMPETITIVE AND REGULATORY FACTORS AFFECTING
TYCO'S BUSINESSES AND THE EXECUTION OF ITS PLAN; AND OTHER FACTORS DESCRIBED IN
TYCO'S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED SEPTEMBER 30, 2001.