FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 October 12, 2005 BRITISH ENERGY GROUP PLC (Registrant's name) Systems House Alba Campus Livingston EH54 7EG (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F..X.. Form 40-F..... Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes ..... No ..X.. If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Exhibit Index The following document (bearing the exhibit number listed below) is furnished herewith and is made a part of this Report pursuant to the General Instructions for Form 6-K: Exhibit Description No. 1 RNS Announcement, re: Section 198 Notice dated 12 October 2005 12 October 2005 British Energy Group plc UK COMPANIES ACT 1985 - SECTIONS 198-202 - British Energy Group plc (the " Company") In accordance with Section 198-202 of the UK Companies Act 1985, the Company has received notification from Deutsche Bank AG as follows: That on the basis that the relevant issued share capital of the Company is 567,110,072 ordinary shares, Deutsche Bank AG and its subsidiary companies have a notifiable interest in 45,444,050 ordinary shares in the Company amounting to 8.01%. Deutsche Bank AG is a corporation domiciled in Frankfurt, Germany, of which Deutsche Bank AG London is a branch. On 05 September 2005, the Company disclosed that Deutsche Bank AG had a notifiable interest in 62,274,332 shares (10.98%), of which 48,706,951 were held as principal. 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. Date: October 12, 2005 BRITISH ENERGY GROUP PLC By:____John Searles____ Name: John Searles Title: Director - Investor Relations