NHK and five commercial TV broadcasters in the Tokyo area have decided to build a new radio and TV transmitter dubbed New Tokyo Tower, in Sumida Ward by 2010, sources familiar with the project said Saturday.

The tower is to be about 600 meters high, or nearly twice as tall as 333-meter Tokyo Tower in Minato Ward and higher than the world's tallest tower, the 553-meter CN Tower in Toronto. It will be built on a former railway shunting yard along the Tobu-Isesaki Line's Narihirabashi and Oshiage stations, they said.

Tobu Railway Co., owner of the site, has expressed willingness to shoulder part of the estimated 50 billion yen construction cost.