Bermuda-based Omega Insurance Holdings Ltd says its board wants no further deal discussions with suitor Haverford Bermuda Ltd after it rejected a new offer from Mark Byrne's company for a 25 percent stake in Omega.Omega said it also disputed Haverford's claims about the deterioration in its financial situation.Haverford confirmed on Thursday that it had made a new 74p per share fixed-price offer for a 25 percent stake in Omega and that the offer would expire at the end of January.Omega responded by saying that “neither the board nor the shareholders who have been consulted today are supportive of HBL's (Haverford's) revised proposal or of any further engagement with HBL regarding an offer”.“The Omega board also refutes HBL's allegations regarding the financial position of Omega and notes that HBL has not claimed that the material adverse change clause in the Offer Document was triggered.“Omega will take such actions as it deems necessary to protect its legitimate interests.”The insurer's statement is the latest twist in a saga which stretches back three months ago to when Mr Byrne's original offer first became public. Haverford then made a “Dutch auction” bid with a range of between 70p and 83p per share for a quarter of Omega. The deal would have resulted in Mr Byrne, the co-founder of Flagstone Re, becoming Omega's executive chairman.In November, Omega reported a 16 percent drop in nine-month gross written premiums and raised its estimate for the cost of 2011 catastrophes by $6 million.In a statement issued earlier this month, Haverford stated there had been “a very significant and unexpected deterioration in the financial position of Omega” and added that its offer had lapsed.Omega responded by saying that it saw no reason why the offer should have lapsed.Omega shares were trading at 59p on the London Stock Exchange earlier today.