A Briton is feared to have drowned in Lake Garda after diving to save his teenage son.
The man, named Aran Chada, 51, rented a boat with his two children and partner on the Italian lake near Limone on Friday.
The family live in the village of Woodhouse Eaves, near Loughborough, Leicestershire, and are believed to have just started their holiday, which included her birthday on Tuesday, The Times reported.
They were about 500m (0.3 miles) from shore when Mr Chada’s 14-year-old son got into trouble in the water. He dived in and managed to push him towards the boat to save him, the coast guard said.
Mr. Chada then got into trouble and slipped underwater, and has not been seen since.
An eyewitness told Italian media: “We were about 100 meters from the shore when we heard a woman screaming for help.
“I looked and she was on a boat with two kids screaming and showing water so we called the emergency services and they came very quickly.”
Coastguard Commander Antonello Ragadale said: “This man was a hero and we fear he may have drowned, but we are doing everything we can to find his body.”
A Coastguard spokesman said: “The family hired a boat from a local company for two and a half hours.
“The man dove in to save his eldest son who was in trouble and managed to push him back to the boat but then he got into trouble.
“It was very hot on Friday afternoon, but the water was ten degrees colder, so it’s possible he had a seizure.
“The search lasted almost seven hours and stopped at nightfall, but has now resumed.
“The family is in their hotel with the police and they have been offered a psychologist for support.”
It was around 31°C last week on Lake Garda.
A Foreign Office spokesman said: ‘We are supporting the family of a Briton who went missing in Italy and are in contact with Italian police.
Rescue boats, divers, an underwater robot and helicopters are all helping to search for the 34-mile-long lake, which reaches 364m (1,135ft) in places.
Mr. Chada’s LinkedIn profile indicates that he is Group Sales Director at Global Energy Ventures, which provides specialist services to the oil industry in West Africa.
There have been a number of drownings in Lake Garda recently, with divers searching for Mr Chada having just returned from searching for a recently missing Italian.
Another Italian drowned in the lake earlier this month.
In 2017, Londoner Gary John Wood, 37, died while trying to swim a mile after a sudden storm created 6ft waves. His body was recovered by an underwater robot.