Hundreds of people have fled the scene, in the popular area of Las Ramblas, following the attack on Thursday, August 17.
And Footballers’ Wives actress Laila Rouass has revealed she she had been caught up in the terrifying ordeal.
In a message to her 22.2k Twitter followers, the star explained she is currently ‘hiding in a freezer’ in the aftermath of the situation.
“In the middle of the attack. Hiding in a restaurant freezer. Happened so fast. Praying for the safety of everyone here x,” she wrote.
“Gunshots just heard. Armed police running down the street looking for someone.
“The whole of #lasRamblas and surrounding roads in lock down with armed police everywhere.
“Thank you to the staff at the restaurant for staying calm and keeping us safe. I love you Barcelona.”
Fans rushed to comfort the Strictly star over her tweets.
“So sorry to hear and for everyone killed & injured. Hope you’re ok let us know Xx,” one replied.
“You’re almost certainly safe but keep phone silent.Police securing the area xxx,” another said.
“S**t. Praying for you and everyone there x,” a third commented.
And many more urged her to stay safe.
Local police have confirmed a man has been arrested in connection with the van attack, which killed 13.
The Guardian state the incident is being treated as a terror attack.