A fire which started in a storage unit close to Heathrow Airport has been brought under control.
Six fire engines and 35 firefighters and officers went to the scene.
Station Manager Tim Frost said: "The fire was in a storage unit and not at Heathrow airport.
He said there had been a lot of thick black smoke at the height of the incident, but firefighters had worked quickly. They had the flames under control shortly before 1.30pm.
Crews will remain at the scene to damp down.
60-year-old Bronwyn Davies from Hillingdon has been missing since New Year's Day.
She was captured on CCTV walking along the Grand Union Canal in West Drayton that morning, by the John Guest Ltd business premises, but hasn't been seen since.
She regularly walks her dogs along this towpath and is well known to other dog walkers and joggers.
She has diabetes but doesn't have any insulin with her.
Mrs Davies' daughter has appealed to her mum and anyone with information to get in touch,
An 84-year-old detainee died while in still restraints after being taken to hospital from Harmondsworth Detention Centre, a report has revealed. The Canadian man, Alois Dvorzac, had been declared by doctors as being unfit for detention because he had Alzheimer's disease.
The Prisons' Inspector said it was one of a number of cases where ''a sense of humanity was lost''.
A statement from private contractor GEO said: "Detainees are not routinely handcuffed when taken out of the centre.
"However, where there is a documented risk of absconding, handcuffs may be used, balanced against a number of factors, including their age.
"Managers have to use discretion to take difficult decisions and we have issued them with additional guidance."