Hundreds of homes have been left without power in Berkshire and Oxfordshire following a bout of torrential rain, thunder and lightning.
Transport was also disrupted for trains between Didcot Parkway and Reading when storms hit both counties in the early hours of Saturday morning.
Scottish and Southern Energy told the BBC lightning strikes to overhead cables had knocked out power supplies to 400 homes in Reading and 144 in Oxford.
Earlier today a lightning strike caused delays for hundreds of passengers at Gatwick Airport after causing electrical trips to the airport's systems.
Fire crews spent three hours extinguishing two roof fires caused by lightning strikes in Wokingham, while a property in Reading was also hit. A number of drivers had to be rescued after breaking down during floods.
Three buildings in Oxfordshire were set on fire after being hit by lightning strikes. There have been no reported injuries.
Engineers said they expected to restore power to all of the affected properties by the end of today.