(CNN) -- Syria's main opposition group cast doubt on a Pakistani Taliban commander's claim that his fighters are establishing a presence in Syria to battle President Bashar al-Assad's regime. The Syrian National Coalition questioned news reports, including on CNN, saying the Taliban has opened an office in Syria. The group notes that a member of Taliban's Shura Council denied the development, calling it a "rumor." Lucy Liu: Syria's children deserve chance to be kids again "We ask for clarification regarding coverage that reflects poorly on the Syrian revolution, particularly news about Taliban's office in Syria and other news items about Islamist fighters," the coalition said in a statement released Thursday.
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NEW: Are they individuals or part of a splinter group?
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The Pakistani Taliban is quoted as saying it has fighters in Syria
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Foreign fighters have been a presence in Syria
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A Taliban member calls the news of Taliban fighters in Syria a rumor, the opposition says
CNN journalists previously inside @placeholder have seen foreign fighters participate in the country's civil war, which sprang from unrest sparked in the spring of 2011.