Police sources told Spanish media they were looking for Moussa Oukabir, the younger brother of Driss Oukabir, who was arrested on Thursday on suspicion of hiring the van used in the attack. Four suspects – three Moroccans and one Spaniard – have been arrested in connection with the Barcelona attack, local police chief Josep Lluis Trapero said on Friday. Catalan police reportedly believe Moussa Oukabir fled the scene of the attack in Las Ramblas and is still on the run. Little is known about Moussa Oukabir, who is thought to have turned 18 very recently. Timeline of terror in Spain: how the Barcelona and Cambrils attacks unfolded Read morePolice and firefighters who came to the scene were wounded by a second blast.

Source: The Guardian August 18, 2017 10:45 UTC