WILMINGTON, Del (Reuters) – A Delaware judge on Monday blocked Ancestry.com Inc’s shareholder vote on the sale of the family-research website for $1.6 billion to private equity firm Permira Investment Advisors pending added details on the sale process.

Ancestry.com shareholders had sued to prevent a vote to approve the deal, arguing the sale was riddled with conflicts, lacked disclosures about the sale process and used legal steps that locked out competing bids.

An attorney for Ancestry.com indicated to the court he anticipated those disclosures would be made in time to allow the shareholder vote on the deal on December 27 as scheduled.

(Reporting By Tom Hals; Editing by Gary Hill)