"I was not going by a truck to the United States," said Home Minister P Chidambaram to a query on his scheduled visit to Washington, evoking peals of laughter.

Chidambaram was addressing the media on the ongoing truckers' stir as also the strike in the petroleum sector when a scribe asked him whether his trip to the US has been cancelled.

"I was not going by a truck to the United States," the minister said in a lighter vein but added that his visit to the US has been cancelled as he was dealing with the situation arising from the strikes.

During the visit, Chidambaram was expected to share evidence with the US authorities on the role of Pakistan-based terrorists in Mumbai attacks.

"The more significant development is that Pakistan has admitted that Mohd Ajmal Amir Kasab is a Pakistani citizen," Chidambaram said.

"There is no ATF (aviation turbine fuel) too," a scribe quipped. The petroleum sector strike has hit flight operations.