A blooded man collapsed in front of horror shoppers after the was the victim of an early-morning knife attack.
Members of the public and staff at the supermarket stepped in to help the injured man.
Video footage shows the man, aged in his 20s, staggering around inside the Asda store in Dewsbury, reports the Examiner Live.
He suffered stab wounds to his face and back.
Footage shows people trying to help the victim in the aftermath of the attack. The injured man, and the store floor, are covered in blood.
The attack happened at around 4.30am on Thursday and led to the temporary closure of the shop as police set up a cordon around the entrance to the Mill Street West store.
Another cordon blocked access to a alley that runs from Savile Road to the bridge near Asda.
West Yorkshire Police said they were called to the scene at 4.47am.
The victim was transported to hospital with non-life threatening injuries.
A suspect was arrested on suspicion of section 18 assault – wounding with intent – and remains in police custody.
A spokesman for Asda praised colleagues for their quick thinking in calling the authorities.
A police spokesperson added: “Enquiries are ongoing in the Mill Street West area to establish the circumstances and there will be an increased policing presence in the area.”