The Sky News logo is seen on the outside of offices and studios in west London, Britain June 29, 2017. REUTERS/Toby Melville

LONDON (Reuters) - Sky SKYB.L, the European pay-TV group at the center of a takeover battle, said on Thursday it had entered into a confidentiality agreement with suitor Rupert Murdoch's Twenty-First Century Fox FOXA.O and Walt Disney DIS.N.

The agreement, which is required under UK takeover rules, will allow Sky to disclose information to the two companies that could be relevant in Disney’s separate attempt to buy Fox assets, including its stake in Sky.

U.S. cable company Comcast CMCSA. gatecrashed Fox's agreed offer for Sky with a rival $31 billion bid last month.