A man has died after plunging from the seventh floor of the London Stock Exchange.
Police and ambulance crews were called to Paternoster Square after the man was said to have fallen from a glass walkway barrier inside the building.
Stock Exchange workers said they were shocked by what had happened.
A broker said: “I came in this morning and there was a screen up in the reception lobby area and ambulances and police.
“There was an internal memo saying there had been an incident.”
One broker said: “It’s horrifying, that’s all I can say.”
A student, who had been waiting to gain entry to the building, said: “My friends inside told me they heard a lot of shouting and then they heard a thud. It’s awful.”
Police said the unnamed man was pronounced dead shortly after 10am by ambulance staff .
He had fallen from “an upper floor” to the ground.
Police declined to give the man’s age or say whether he worked at the Stock Exchange but said that the incident was being treated as “non-suspicious”.
A City of London Police spokesman said: “We were called to the London Stock Exchange in Paternoster Square at 9.58am to a report of a man who had fallen from an upper floor in the building to the ground.
“London Ambulance Service attended and the man was pronounced dead at 10.10am.
“The City of London Police is currently investigating the circumstances around the death and the incident is being treated as non-suspicious. We are now working to inform the man’s next of kin.”
A London Stock Exchange Group spokesman said: “We can confirm an incident this morning where a London Stock Exchange Group colleague fell from an upper floor balcony and died.
“The emergency services were called immediately and are dealing with the incident. We will continue to offer them every support and cooperation possible.
“Our thoughts and condolences are with the family and friends of our dear colleague. We would ask that the privacy of the family of the deceased be respected at this time.”
The Paternoster Square entrance to the Stock Exchange was closed this morning and staff were told to use the entrance on Newgate Street.