A Yemeni national who allegedly served as an Al-Qaeda propagandist has been convicted by a panel of military officers in the second `war on terror` trial at Guantanamo Bay, Cuba, a Pentagon spokesman said Monday.

The military panel handed down the guilty verdict against Ali Hamza Ahmad al-Bahlul on Friday, but it was sealed until Monday, said the Pentagon spokesman Bryan Whitman.

`My understanding is that he was found guilty,` Whitman said.