A man who became trapped in a flooded manhole in Hull has died.
Many parts of the region have experienced severe downpours
Emergency crews and police divers spent hours trying to rescue the man, who was trying to clear the drain in Astral Close, Hessle, for his grandfather.
The 28-year-old man was up to his neck in water after becoming trapped by his foot, Humberside Fire Service said.
Spokesman Glenn Ramsden said firefighters had gone under the water to try to free the man until specialist rescue crews arrived.
He said: "For some reason he got stuck in a grate and couldn't be freed, and despite rescue efforts unfortunately the flood waters just kept rising and rising and we couldn't save his life.
"The flood waters just kept rising and beat us."
Humberside Police said an investigation into the circumstances surrounding the incident was under way and the Health and Safety Executive had been informed.
In Beverley, two RAF helicopters from Leconfield were scrambled to search for a motorist who was trapped in a car.
The man had called 999 to say he was stuck in rising flood water on the A1079 between Dunswell and Bishop Burton.
People have been advised not to travel unless absolutely essential
Torrential downpours also led to the rescue of a woman and three children who were trapped in a car in the city.
Hull City Council has set up an incident room in the Guildhall to deal with problems caused by flooding.
More than 70 schools were closed and emergency services were inundated with hundreds of calls on Monday as flooding hit roads, businesses and homes.
The city's cemeteries and crematorium were all closed due to extensive flooding.
Sewage was reported to be flowing into some homes, prompting health officials in Hull and North East Lincolnshire to issue a health warning.
Director of public health for North East Lincolnshire Primary Care Trust, Dr Tony Hill, advised people to try to avoid coming into contact with contaminated water.
He also advised parents not to let their children play in such water.
Glenn Ramsden, of Humberside Fire and Rescue Service, said firefighters had received more than 300 calls in just three hours and urged the public to contact the service only in an emergency.