Hulu pulls content from

NBC-News Corp. joint venture removes its programming from CBS-owned, according to sources.

Update at 11:38 a.m. PST, with comment from Hulu. has pulled its content off CBS-owned, which relaunched last month, Hulu confirmed Wednesday.

(Disclosure: CNET News is published by CBS Interactive, a unit of CBS.)

Attempts to access episodes of Heroes and other content from NBC and News Corp. partners in the Hulu joint venture, displayed a "video unavailable" message.

In a statement, Hulu said:

Hulu has contractual rights with regards to our relationship with and we are exercising those rights. Out of respect for their confidentiality, we will not disclose our discussions.

A CBS spokeswoman said the company had no comment.

Hulu also has distribution partnerships with other sites, such as Mojo, MyNetworkTV, and Lionsgate. saw a 263 percent increase in unique viewers in January after it redesigned and expanded the site and added user interaction features, according to Nielsen VideoCensus figures cited by MediaPost Online. It has 5.9 million unique visitors compared with Hulu's 4.5 million, according to Nielsen figures reported by Advertising Age.

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