Panic personnel are evacuated from a large office building, which includes the headquarters of Warner Music Group. According to the police, both perpetrators were arrested.
"The two members of the hosting team are in violent struggles," says Sony Music.
The London police reported that they had an approximately 11-hour incident. local (13 hours Lithuanian time), armed officers and emergency workers, as well as personnel evacuation.
"Two men have been diagnosed with bronchial wounds, both arrested on the scene, suspected of causing serious bodily injury," says the police statement.
"The men were taken to hospital where they are still there, and they believe their injuries do not pose a threat to life," he added.
The 25-year-old financial analyst, Warner Music Group, Maria Afolabi learned the incident when the fire alarm was switched on.
After leaving the building, he saw that he was crying to a Sony Music worker and upholstered armed officers.
"We did not know what was happening, they had huge weapons and ran up," she told the AFP news agency.
An anonymous Sony Music employee told the Press Association (PA) news agency that kitchen workers employed by one of the catering companies "ran and whispered" and "fired each other".
In the case, the street was temporarily closed. This location is located in the heart of Kensington, and Sony Music Headquarters is opposite the newspaper The Daily Mail.
Personal assistant Trish Ellis, who saw the incident in an editorial sense, told PA: "The armed police officers enter each other six or more times … It seems people are being held in the building."
"Gradually they started liberating people-ten or twenty," he added.