The Miramar, Florida-based discount airline is expected to file for bankruptcy protection from its debts in as little as 10 days or within weeks, sources familiar with the matter confirmed to CBS News. The Wall Street Journal first reported the looming bankruptcy filing.

Spirit Airlines stock (SAVE) plunged 59% on Wednesday as the budget airline explores a deal with creditors to restructure its debt amid a reported threat of bankruptcy after merger talks with Frontier (ULCC) collapsed.

Spirit Airlines’ shares plunged more than 50% in early trading Wednesday, following a report that it is preparing to file bankruptcy — and the company’s announcement that it won’t report quarterly financial results because it’s scrambling to reach a deal with creditors.