Update 4:40 p.m.: The latest reports out of Barcelona indicate that, in addition to the 13 people killed in the ISIS attack, 80 people have been injured, 15 of whom are in serious condition. Forty-two people have been described as having mild injuries. Two people have been arrested, and there are reports that another possible suspect has been killed in a shootout with the police.
Update 3:35 p.m.: The Islamic State has claimed responsibility for the terror attack in Barcelona that took the lives of at least 13 people. Meanwhile, there have been separate reports that a driver ran over two police officers at a checkpoint in Barcelona. It is not yet clear how this event was connected to the earlier attack.
Update 3:00 p.m.: Spanish media report that a suspect involved in the Barcelona attack has been killed in a shootout with police just outside the city.
Update 2:26 p.m.: The Associated Press is reporting that a Catalan official says 13 people were killed in the Barcelona attack, and more than 50 were injured. Regional police also dismissed early reports that suggested attackers were holed up in a bar near Las Ramblas.
Update 1:56 p.m.: Spanish public broadcaster RTVE reports that one suspect has been arrested.
Update 1:42 p.m.: Reuters reports that local authorities have found a second van, possibly connected to the terror attack, north of Barcelona.
Update 1:27 p.m.: According to local news source El Pais, the van used in the attack had been rented by a man named Driss Oukabir:
This post will be updated as events develop.