Four members of a UK family have died in a car crash while they were on holiday in Portugal.

Domingos Serrano, 55, Maria Serrano, 51, and their twin sons Domingos and Afonso, both 20, died when the car they were travelling in collided with another vehicle in Castro Verde, southern Portugal, according to the Municipal Council for Mourao.

Two others died in the crash – the 19-year-old girlfriend of one of the sons, and the 26-year-old driver of the other car, its statement added.

The Serrano family were living in Thetford, Norwich, but were not British nationals, Sky News understands.

They were travelling from Faro to Mourao for their “usual and deserved vacation”, according to the Mourao authorities, who declared two days of mourning.

In a statement, they said: “In the car there were four occupants, of Mouranese nature, and a young woman with affinity to the family.

“Residents in England, follow from Faro to Mourão, for the usual and deserved vacation.

“It is with great regret that the Municipality announces this information, offering its condolences to the families and friends of the victims.”

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‘Massive void’

Thetford Town Youth Football Club paid tribute to the family in a Facebook post, confirming the twins played for the team.

“Thetford Town Football Club would like to pass on our sincere condolences to the Serrano family and the local Portuguese community after the recent tragedy while on holiday,” it read.

“Afonso and [Domingos] were both an integral part of our U18’s team in recent years, both brothers sadly passed away in Portugal with their parents and friends in a tragic car accident.

“The loss of this lovely family will leave a massive void in the local community.”