NEW DELHI, Oct. 24 (Xinhua) -- Reiterating that the extreme left-wing Naxal rebels are the biggest internal security threat, India Saturday claimed that the rebels are procuring arms from Bangladesh, Myanmar and Nepal to carry out their attacks in the country.

    "Naxals are acquiring weapons through Bangladesh, Myanmar and possibly Nepal. In terms of the threat to security from Indian sources or internal sources, Naxalism remains the biggest threat. There is, of course, the other threat which is cross border terrorism but that is emanating from across the border," Indian Home Minister P. Chidambaram said in a media interview.

    He added: "There is no evidence of any money flowing in from abroad to the Naxals. But there is certainly evidence of weapons being smuggled from abroad through Myanmar or Bangladesh which reach the Naxals."

    The Home Minister's statement came a day after he made it clear that it would not under any circumstances enter into any dialogue with the extreme left-wing rebels or Naxals until they give up arms and violence.

    "No talks until Naxals abjure violence," he had said.

    Claiming that the Naxal violence has been proving to be costly for the country, Chidambaram had also said: "India is going through a difficult phase of internal security, but we will overcome the challenges."