“I just saw this huge black truck speeding through the markets crushing so many people and then all the lights went out and everything was destroyed.
“I could hear screaming and then we all froze. Then suddenly people started to move and lift all the wreckage off people, trying to help whoever was there.”
Ms O’Neill says they waited there while they figured out what they should to, before deciding to try and find somewhere safe.
“People, including children and older people, weren’t moving — people were crying and I just burst into tears,” she added.
“I never thought I would see something like this in my life. I’m shaking and scared. It all just happened so fast.”
So far nine people have been confirmed dead and at least fifty injured.
Reports suggest it was a deliberate attack however it is yet to be confirmed as terrorist related.
The suspected driver has been detained by police and a passenger who was in the truck was found dead at the scene.