A man has been arrested on suspicion of murder and arson after a fatal house fire in Reading.
One person was killed in the blaze at a home on Grovelands Road, while several others remain unaccounted for.
Thames Valley Police said their officers are at the scene along with firefighters and ambulance crews.
The 31-year-old man who has been arrested remains in custody.
The force said the fire is not being treated as terror-related and urged people to avoid the area, with road closures in place.
In a statement on Twitter, Thames Valley Police said: “Local agencies are working together at the scene of a large fire at a property in Grovelands Road, Reading.
“Our officers, as well as the fire and ambulance services, are at the site. Sadly, one person is believed to have died, and a number of others are unaccounted for.”
The statement added: “If you have any concerns, for loved ones, please try and contact them in the first instance. A dedicated number is being set up for this, and details will follow very shortly.”