(Telecompaper) Dutch cable operator Ziggo said it's in talks on a possible deal to be acquired by Liberty Global, its largest shareholder. Ziggo issued a statement following stock market rumours that Liberty had made a new approach to the company. No details of the proposed offer were announced. In October Ziggo rejected an offer from Liberty Global as "inadequate". Liberty, which already owns the cable operator UPC in the Netherlands, holds a 28.5 percent stake in Ziggo.