Abd al-Rahim al-Nashiri:
In November 2002, the US said it had captured a senior al- Qaeda member, Abd al-Rahim al-Nashiri
- believed to be leader of the network's operations in the Gulf
Mr Nashiri, also known as Abu Asim al-Makki, is suspected of masterminding the October 2000 attack on the American warship USS Cole in the Yemeni port of Aden, in which 17 sailors died.
US authorities have also linked Mr Nashiri to the 1998 bombings of American embassies in Kenya and Tanzania.