Hundreds of cars parked at Heathrow Airport have been swamped by floodwater as torrential rain hit the capital.
Video posted on social media shows row upon row of vehicles caught in the flash flood in west London on Wednesday morning.
A Heathrow spokesperson said: “Yesterday morning, a localised water issue affected a Heathrow car park, operated by a third-party parking provider.
“The issue has since been resolved.
“We apologise for the inconvenience this has caused and advise that passengers who believe their vehicle may have been affected should contact their parking operator and, if necessary, their motor insurer.”
It came as London was hit by thunder, hail and torrential rain on a distinctly chilly day that saw temperatures fall to as low as 9C in the afternoon.
But early forecasts suggest a distinct change in the weather by the May 25 bank holiday.

Met Office meteorologist Annie Shuttleworth, in an online forecast, said: “By the end of next week and the start of the bank holiday weekend, temperatures could be above average, possibly in the low 20s for some areas.”
The “warming trend” looks likely to progress as there is “going to be a move from low pressure to high pressure dominating” the weather
But Ms Shuttleworth warned “as that is 10 days away, there are some details to work out”.
She said there could be high pressure in the east to start the week which then becomes more centred across the UK during the bank holiday weekend.
She added: “Whatever position that high pressure brings – all of them bring less cloud, a little bit more sunshine, and lighter winds, which means temperatures will be on the rise through next week.”
Temperatures may slowly start to rise from the start of next week.
Ms Shuttleworth said: “From Thursday onwards, temperatures could rise above average, approaching 20 degrees for some across southern areas.
“We could be closer to the mid 20s, possibly, for some areas, in the South East, by the bank holiday weekend.”
There is “a little bit of uncertainty” about where the higher temperatures will be, she added.