A spokesman for William Hill said:
"Following the tragic events in Camden on Monday evening, William Hill is extending full co-operation to the authorities as they seek to understand the circumstances leading to this deeply regrettable and unforeseen accident.
We would like to express our sincere condolences and sympathy to the family for their loss."
A sign which fell and killed a man in Camden this evening was above a betting shop.
The man, believed to be in his 20s, died following the incident, at 4.55pm, Scotland Yard said.
The sign came away from above a William Hill betting shop on Camden Road .
A man has died after being hit by a sign or board which fell from a building.
The man, who was in his 20s, died after the accident just before 5pm this evening.
A Scotland Yard spokesman said: "Officers and London Ambulance Service attended and the man, believed to be aged in his 20s, was taken to a central London hospital for treatment. He died there a short while later.
"At this early stage it appears the man received his injuries after being struck by a sign or board which has fallen from a building."
Inquiries into the incident on Camden Road are continuing.