This video grab obtained on August 17, 2017 from the instagram account carlos_tg_32_ shows traces of blood and people standing near a man lying on the ground, after a van ploughed into the crowd, killing 13 persons and injuring several others, on the Rambla in Barcelona. At least 13 people were killed today when a driver deliberately slammed a van into crowds on Las Ramblas, Barcelona's most famous street, in what police said was a "terror attack". Two suspects have been arrested over the attack, according to Spanish authorities. / AFP PHOTO / INSTAGRAM / carlos_tg_32_ / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / INSTAGRAM account carlos_tg_32_" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS