The four migrants, believed to be from Somalia, were part of a larger caravan of 16 smuggled into Britain from Italy, according to The Sun. The newspaper reported they began to feel unwell after police found them inside the back of the vehicle on an industrial estate.
A source told The Sun test results were pending following their discovery in Biggleswade, just north of Letchworth Garden City.
They have since been “isolated” in a block of council-owned flats in Bedford.
The remaining 12 migrants are being dealt with by immigration officials, it is understood.
Kempston Police Station, where all 16 were held, was closed and deep cleaned to ensure any potential spread of the virus was curtailed.
The four are currently being held in a council flat in Bedford (Image: GETTY)
Boris Johnson meets with health experts in London to discuss the virus (Image: GETTY)
A separate group of immigrants smuggled into the country were discovered inside a container at King George Dock in Hull.
Police would not confirm if any of these had yet been tested.
Meanwhile, cases in the UK took a sharp rise as 12 new confirmed cases were announced.
It took the total to 51.
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Hospitals across China are treating the thousands who have been infected with the virus (Image: GETTY)