The four suspects arrived at the court around 8 a.m. (local time) after spending Monday night in the cells of the Civil Guard Headquarters in Tres Cantos town, Xinhua news agency reported.
The four face questions from High Court Judge Fernando Andreu, and are almost certain to be remanded in custody awaiting trial.
One of the terrorists, Mohamed Houli Chemal, was at a house in Alcanar where the group was believed to be preparing a bigger terrorist attack.
Dris Oukbar, Mohammed Alla and Salh Karib were arrested in Ripoll town to the north of Barcelona, where the majority of the terrorists were from.
Five other members of the terrorist cell were shot dead by police in Cambrils, two died in a gas explosion in Alcanar, and Younes Abouyaaqoub, the suspected driver of Thursday's deadly Barcelona van, was shot and killed by police near Subirats town on Monday.
Fifteen persons were killed and about 120 injured in the attacks.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.
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