Spanish police have raided the flat of a man they think could be the ringleader of the group behind Thursday's terror attacks.
It's thought the Imam, who hasn't been seen since Tuesday, may have radicalised the young men.
Meanwhile, a major manhunt is continuing for Younes Abouyaaquob, who's believed to have been driving the van which ploughed into a crowd in Barcelona.
Abouyaaqoub lived in Ripoll - a small town north of the city - along with several other terror suspects that have since been shot dead by police, or detained.
Ali Yassine is a member of the local mosque there:
Authorities in Spain say the county's terror threat alert will remain at level four, and security at tourists sites will be increased.Irish Times Journalist Conor Gallagher is in the Spanish city:
