18 images show how the deadly Barcelona van attack unfolded

ISIS has claimed responsibility for a van attack in Spain’s historic Las Ramblas district in Barcelona, where at least 13 people were killed and some 100 were injured.

The square had been buzzing with tourists and residents when a white van jumped the curb and plowed into pedestrians on Thursday.

First-responders flooded the scene, cordoning off the street and tending to the injured. Two suspects are reportedly in custody, not including the driver of the van who was still at large early Friday morning.

Here’s how the day’s tragic events unfolded in Barcelona:

Main streets in Barcelona, Spain, were packed with tourists and locals on Thursday, before a van jumped the curb and rammed into pedestrians.

At least 13 people were killed and some 100 were injured.

The van driver fled after the attack, police said, and was still on the loose, early Friday.

Pedestrians fled the scene as the van came barreling through.

According to witnesses, the van swerved from side to side as it plowed into pedestrians.

Parents held their children as they fled down side streets.

First responders tended to the injured.

An injured woman is examined by a medic.

Armed police officers were out in force, searching for suspects.

People were in shock immediately after the attack.

People stand behind police tape on a street in Barcelona.

Some witnesses were visibly shaken.

Emergency workers stand by on a blocked street in Barcelona.

Police officials are seen next to the van involved in the attack.

Investigators evaluate evidence near the crash scene.