STORY: A car drove into pedestrians near Seoul city hall on Monday (June 1), killing nine people and injuring at least four more, according to police and fire officials.

Local broadcaster YTN TV said that the car rammed into pedestrians standing on the crosswalk after hitting two other cars.

Witness Park Sung-il described what they saw:

"Even though people collapsed (after being hit by the car), the person in the passenger seat was only concerned about the driver and mentioned that there were clothes in the trunk (to use for applying pressure to the wounds). If only they had applied pressure quickly to those hit by the car, at least one person could have been saved. That one person probably died."

A police officer was administering CPR to a person on the ground at the site of the accident, according to a video given to Reuters by a witness.

Temporary barricades were already up by Tuesday morning after the collision damaged pedestrian guardrails.

Cho Hyun-ho runs a store near the site of the crash, and he said he still felt affected by the news:

"(My daughter) called me because I run a store in front of the city hall. So I asked her what the accident was, and I heard it was a big accident, I mean, the car crash happened. This is how I found out. My heart at that time is still... breaking (filled with grief)."

According to police officials the exact cause of the accident is still under investigation.