Forensic experts are today examining a blood stained store in Sheffield where police officers were attacked by a man with an axe.
Pools of blood can be seen on the floor inside the Co-op in Blackstock Road, Gleadless Valley, where a man was arrested on suspicion of attempted murder after attacking officers attempting to arrest him last night.
The man had already attacked two police officers called to intervene in a domestic incident in a flat in nearby Plowright Close a few moments earlier.
One female police officer attacked at the flat is due to undergo surgery today.
The Co-op remains closed this afternoon while forensic experts examine the crime scene, while the flat in Plowright Close remains sealed off and under police guard.
Detectives investigating the incident want witnesses or anyone with information to come forward.
Call South Yorkshire Police on 101.