CALGARY, ALBERTA--(Marketwire - June 4, 2010) - Sonde Resources Corp. ("Sonde Resources" or the "Company") (TSX:SNG) (NYSE Amex LLC:SNG) announced today that it has become aware of two proposed class action lawsuits commenced in the Ontario Superior Court of Justice. The lawsuits purport to be brought on behalf of purchasers or holders of common shares of the Company between January 14, 2008 and February 17, 2009. The actions are made against different groups of former executives and directors of the Company and one current officer of the Company. The actions contain various claims relating to allegations of misrepresentation and failure to disclose information concerning the Company's activities in Trinidad and Tobago. These actions appear to be based on similar allegations as made in the claim brought in the United States against former executives of the Company which the Company disclosed on December 14, 2009. One of the actions also alleges improper option granting practices and includes the Company and Challenger Energy Corp., a wholly owned subsidiary of the Company, as defendants.

Neither action can proceed unless certified by the Court. The Company intends to review these claims in detail and take steps to protect its interests.

Statements contained in this news release relating to future results, events and expectations are "forward-looking information" within the meaning of applicable Canadian securities laws and "forward -looking statements" within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements involve known and unknown risks, uncertainties, scheduling, re-scheduling and other factors which may cause the actual results, performance, estimates, projections, resource potential and/or reserves, interpretations, prognoses, schedules or achievements of the Company, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such statements. Such factors include, among others, those described in the Company's Annual Information Form available on SEDAR at www.sedar.com and in the Company's annual reports on Form 40-F or Form 20-F on file with the U.S. Securities and Exchange Commission.