ZINTAN, Libya - A Libyan spokesman says Moammar Gadhafi's intelligence chief is being held in a highly secret location in southern Libya because of possible threats to his life.

The spokesman for Libya's National Transitional Council, Hmeid al-Etabi, said Abdullah al-Senoussi was in the custody of the Fazan brigades in the town of Sabha, 650 kilometres south of Tripoli.

He said on Monday there was a media blackout on his precise location and the details of his capture because he is much-hated in Libya and there could be attempts to kill him.

Al-Senoussi was captured alive on Sunday by revolutionary fighters not far from where Gadhafi's son was seized a day earlier.

Both men are wanted by the International Criminal Court in the Netherlands on charges of crimes against humanity.