Hampshire, Dorset and Somerset remain at medium risk of flooding with another day of rain expected to hit the regions, the Met Office has said.
The Environment Agency has issued more than 14 flood warnings, with the majority in Southern England, which mean flooding is expected and immediate action is required.
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Between 4,000 and 8,000 fighters of the so-called Islamic State are still thought to be in the area.
Police are trying to find the driver of the car following the incident in Kingfisher Close, Brownhills.
An unnamed man died at the scene, while a woman was pronounced dead after being taken to St George's Hospital, Tooting, south-west London.