Osama bin Laden’s son-in-law is likely to have vast knowledge of al Qaida’s central command, intelligence experts say.

Osama bin Laden’s son-in-law has pleaded not guilty to plotting against Americans in his role as al Qaida’s leading spokesman as a landmark case trying a terror suspect on US soil moves forward.

Osama bin Laden’s son-in-law is due to appear in a New York City courtroom to face a charge he plotted against Americans.

Iran was quick to deny a report today that it was holding a top al-Qaida official, but it acknowledged it had not yet identified all the members of Osama bin Laden’s terror group it has in custody.

Terror group Al-Qaida threatened faster and harder strikes against the United States and Israel “on land, air and sea” in a new statement posted on a militant website today.

AL-QAIDA yesterday threatened more attacks on Americans and dismissed the US campaign to dismantle the terrorist group as a "Hollywood script" without effect.

al-Qaida today threatened more attacks on Americans and dismissed the US campaign to dismantle the terrorist group as a ‘‘Hollywood script’’ without effect.

A spokesman for Osama bin Laden says the terrorist and his number two, Ayman Al-Zawahri, are both alive and well.

A spokesman for Osama bin Laden’s militant group has urged all Muslims to wage holy war on Americans across the world.