DUBAI: A man believed to be a top Al Qaeda militant who escaped from a US jail near Kabul was shown in a new videotape broadcast yesterday exhorting followers in Afghanistan to fight on until they attack the White House.

"Allah will not be pleased until we reach the rooftop of the White House," Abu Yahya al-Libi was shown telling fighters in the tape aired by the Dubai-based Al Arabiya television.

The channel said the tape was one-hour long, showing footage of Libi urging fighters to train hard and even to try to acquire nuclear technology.

"You have to get well prepared by starting with exercise, and then you have to learn how to use technology until you are capable of nuclear weapons," he said.

Libi is believed to be the alias of Libyan Mohamed Hassan who along with three other Al Qaeda militants broke out of the US jail at Bagram Air Base last year. – Reuters