At least 14 people were hurt in a suspected gas explosion at a luxury hotel in central London, the BBC has reported.
The five-star Hyatt Regency London - The Churchill in Portman Square, Marylebone, was evacuated following the blast shortly before midnight on 21 November.
London Ambulance Service said five of the injured were taken to hospital, including two with leg wounds.
Fire officers and gas engineers are ensuring the scene is safe so guests can be allowed back into the hotel.
Another nine people who sustained injuries were treated at the scene.
London Fire Brigade said the explosion happened at about 23:40 GMT in the basement of the hotel, causing part of the building to collapse.
About 80 firefighters were at the scene, including those operating appliances with specialist equipment to deal with collapsed buildings.
London Fire Brigade said at the height of the incident, about 500 people were evacuated. The hotel has more than 400 guest rooms.
A hotel spokesman said that no guests were harmed, but that 12 staff were treated for injuries, and that guests would be accommodated in other hotels while the damage was being assessed.
He added: “Hyatt’s top priority is the safety and wellbeing of our guests and associates, and we are currently working to provide guests with accommodations while we evaluate whether the hotel suffered any significant damage.”