The questioning of the group's members is continuing and further arrests are possible.

Police officials would not say if further arrests are likely.

Yes, the ruling will bring concern to some diplomats and could lead to further arrests.

But senior American officials say that further arrests are needed.

By 2006, seven men had been found guilty, but no further arrests were made until 2011.

"The possibility that further arrests may still be made is not excluded," the police statement said.

But also said the police investigation could lead to further arrests.

On 21 September 2011 3 further arrests took place at the caravan park.

The intelligence they provide is likely to lead to further arrests and the weakening of the organization.

"We believe he was acting with others, and there will be further arrests."