Fuji Television Network Inc. has probably secured more than one-third of voting rights in Nippon Broadcasting System Inc. through its public tender offer that ended Monday evening, sources said.

Internet service provider Livedoor Co. and Fuji TV have been engaged in a high-profile battle for control of the radio broadcaster. Fuji TV launched the tender offer in January.

Fuji TV was expected to make public the results of the tender offer Tuesday morning. It reportedly has acquired more than 33.4 percent in terms of voting rights, easily clearing its target of at least a 25 percent stake.