Sept 21 (Reuters) - British real-estate portal Rightmove ( RTMVF )

has rejected an improved takeover offer from REA Group ( RPGRF )

, majority-owned by Rupert Murdoch's News Corp ( NWSA ),

Bloomberg News reported on Saturday.

Rightmove ( RTMVF ) views the sweetened bid of nearly 750 pence a

share, or a total of about 5.9 billion pounds ($7.86 billion),

as undervaluing the company, Bloomberg said, citing people

familiar with the matter.

($1 = 0.7507 pounds)