BlackBerry Ltd. said it concluded its strategic review and is no longer looking for a buyer, and will instead receive a $1 billion investment from Fairfax Financial Holdings Ltd. The company said in a release Monday that the special committee it launched in August to explore the company’s strategic options, including a sale, had concluded the process. It said Fairfax would invest “in BlackBerry through a U.S. $1 billion private placement of convertible debentures.” BlackBerry also said chief executive Thorsten Heins will leave the company. Prem Watsa, chairman and chief executive of Fairfax, who stepped down from BlackBerry’s board this year to avoid a potential conflict, will rejoin the board, the release said. “The BlackBerry Board conducted a thorough review of strategic alternatives and pursued the course of action that it concluded is in the best interests of BlackBerry and its constituents, including its shareholders,” Barbara Stymiest, BlackBerry’s chairwoman of the board. “This financing provides an immediate cash injection on terms favorable to BlackBerry, enhancing our substantial cash position.” BlackBerry said it expects the financing to be completed in the next two weeks. In September, Fairfax made a tentative $4.7-billion US offer to acquire BlackBerry, while news reports said there were other potential bidders for the company, including New York-based private equity firm Cerberus Capital Management LP, BlackBerry founders Mike Lazaridis and Doug Fregin, and Google Inc.