Research In Motion Ltd. warned Friday that it will miss the Oct. 17 filing of its second-quarter financial results with regulators because of an accounting investigation over stock options.

After the close of the stock markets, the company said it may need to make more restatements to its past earnings.

RIM said it will ask Canadian securities regulators to issue a management and insider cease-trade order that would prohibit trading in RIM's securities by its senior officers, directors and other insiders until the financial statements are filed.

The Waterloo, Ont.,-based producer of the popular BlackBerry wireless device revealed on Sept. 28 that it had launched a review of its stock-option grants dating back to 1997...

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