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                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549






                                    FORM 8-K
                                 CURRENT REPORT






     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934






        DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED) - JUNE 10, 1999







                              MINNESOTA POWER, INC.


                             A Minnesota Corporation
                           Commission File No. 1-3548
                   IRS Employer Identification No. 41-0418150
                             30 West Superior Street
                          Duluth, Minnesota 55802-2093
                           Telephone - (218) 722-2641








ITEM 5.  OTHER EVENTS.

Reference is made to the Annual Report on Form 10-K for the year ended  December
31, 1998 (1998 Form 10-K) of Minnesota Power, Inc.  (Minnesota Power or Company)
for background  information on the following  update.  The cited reference is to
the Company's 1998 Form 10-K.


Ref. Page 22 - Fifth and Six Paragraphs.
Ref. Form 8-K dated and filed February 26, 1999.
Ref. Form 8-K dated and filed May 27, 1999.

On June 10, 1999  Capital Re  Corporation  (Capital  Re) and ACE  Limited  (ACE)
signed a definitive  agreement  providing for the merger of Capital Re with ACE.
Under the terms of the Agreement and Plan of Merger (Merger Agreement),  Capital
Re's  shareholders  will  receive 0.6  ordinary  shares of ACE for each share of
Capital Re at closing,  subject to a maximum value to Capital Re shareholders of
$22 per share. It is anticipated  that the transaction  will be completed during
the second half of 1999, subject to customary regulatory approvals,  approval of
the merger by Capital Re's  shareholders,  confirmation  of specified  financial
strength  ratings of Capital Re's  principal  operating  subsidiaries  and other
customary closing  conditions.  Upon closing,  final transaction  valuation will
occur. The Merger Agreement has a termination date of February 28, 2000.

In  conjunction  with the  signing of the  Merger  Agreement  on June 10,  1999,
Minnesota Power signed a Stockholder Support Agreement.  Under the terms of this
agreement, Minnesota Power has agreed to vote all of its shares of Capital Re in
favor of the merger.  Minnesota  Power has also agreed to hold its shares of ACE
for a period of 180 days  commencing the day of closing,  other than in a single
private sale of all or substantially  all of the original shares Minnesota Power
will receive.

Capital Re is a financial guaranty  reinsurance and specialty  insurance company
that trades on the New York Stock Exchange under the symbol KRE. ACE through its
subsidiaries, provides a broad range of insurance and reinsurance products for a
diverse  group of  international  clients.  ACE  trades  on the New  York  Stock
Exchange under the symbol ACL.

                                      -1-


                                   SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.





                                                    Minnesota Power, Inc.
                                            ------------------------------------
                                                        (Registrant)





June 15, 1999                                           D. G. Gartzke
                                            ------------------------------------
                                                        D. G. Gartzke
                                               Senior Vice President - Finance
                                                 and Chief Financial Officer



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