Complete the passage: pick from possible candidates.

(CNN) -- European intelligence agencies are on alert for new al Qaeda terrorist plots following the arrest of two men at an Italian port and investigations into the activities of an alleged al Qaeda network based in Brussels. Bassam Ayachi officiated at the wedding of Malika el Aroud (pictured), who became an al Qaeda "icon." The two are closely tied to a Brussels-based al Qaeda recruiting network, Belgian counter-terrorism officials have told CNN. They are Bassam Ayachi, 62, and Raphael Gendron, 33 -- and they were detained in the port of Bari on November 11 last year after allegedly trying to smuggle three Palestinians and two Syrians into Italy in the false bottom of a camper van they were driving.



OPTIONS:
- Bari security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Bassam Ayachi security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Belgian security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Brussels security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- CNN security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- European security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Italian security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Italy security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Malika el Aroud security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Palestinians security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Raphael Gendron security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- Syrians security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.
- al Qaeda security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.


Belgian security services went on high alert after members of the group started to return from the tribal areas in late 2008, concerned they might have been tasked to launch attacks in Europe.