The FBI suggests there is little credibility in a Pakistani Taliban militant leader's claim of responsibility for the attack Friday on a U.S. immigration center in New York state in which 14 people, including the gunman, were killed.

Baituallah Mehsud told Reuters by telephone from an undisclosed location on Saturday, "They were my men. I gave them orders in reaction to U.S. drone attacks."

The claim appears to be little more than a publicity stunt.

"Based on the evidence, we can firmly discount that claim," FBI Special Agent Richard Kolko said Saturday.

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Click here for taped video from the scene from the Binghamton Press Sun & Bulletin.

Mehsud's claim comes as a suspected U.S. drone fired two missiles at an alleged militant hide-out Saturday in northwestern Pakistan, killing 13 people.

The U.S. is suspected of carrying out more than three dozen such strikes over the past year in Pakistan near the Afghan border, where militants often launch attacks against U.S. and NATO troops. The drone attacks have caused tension with the Pakistani government, which frequently complains about the U.S. carrying out strikes on its territory.

The Associated Press contributed to this report.