9/11 ‘mastermind was trained in Japan’

The alleged mastermind of the September 11 terror attacks spent months in Japan apparently learning how to dig rock caves for use as underground fortresses in Afghanistan, it was reported today.

Khalid Sheikh Mohammed was trained by a Japanese construction machine company, security officials in Tokyo told Kyodo News.

Japanese authorities believe he later used his training to dig caves that Afghan guerillas would use as defensive positions and hide-outs.

Mohammed was arrested on March 1 in Rawalpindi, Pakistan, and is being held at an undisclosed location outside Pakistan.