More than 330 firms involved in the construction, refurbishment or management of Grenfell Tower are to be interviewed by Police.

In an update on the investigation into the tragedy, Met Police said they are contacting a total of 336 different organisations to "establish exactly what their role was" concerning the tower block.

A total of 60 people who died in the fire have now been formerly identified. While the number of people who are believed to have died remains at around 80, the final figure will not be known until the end of the search, recovery and identification processes.

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A spokesperson said: "Where their role is considered relevant, digital downloads of all business records are being recovered.

"So far, in excess of 31 million documents have been recovered and it is anticipated that number will increase. Specialist software will be used to enable officers to process and search those millions of documents in order to find any relevant material that may be used evidentially at a later stage."

Police also confirmed the forensic examination of the tower is ongoing and "will continue into the New Year".

"This includes photographing and documenting every room on every floor, paying particular attention to fire safety provisions such as fire doors, the standards of construction work, the routing of pipework and smoke extraction systems," the spokesperson continued.

"After that, there will be a series of further forensic tests including reconstructions. Only after that work is compete will officers be in a position to fully understand what happened, what went wrong and what questions need to be answered."

(LM)