British police rescued three suffocating migrants on Wednesday from inside a refrigerated lorry, after the men rang the police for help.
The migrants called police from inside the lorry, saying that they were suffocating and struggling to breathe.
A hunt for the vehicle was launched and officers from both Essex Police and the Bedfordshire, Cambridgeshire, and Hertfordshire Roads Policing Unit tracked the lorry down the A14 and M11.
The lorry, believed to have travelled from France, was found at Brampton Hut services just before 1630 GMT.
The three men, who were “safe and not injured,” were transferred to the immigration services.
The police called on the public to look out for warning signs and call 999 when they spot abnormalities.
The warning signs include hearing banging from the inside of a lorry, and seeing people stealthily emerging from or going inside of the back of a lorry.
The police say members of the public should immediately call 999 and take a note of the vehicle registration number if they notice any of these signs.
Human smugglers often hide illegal immigrants inside UK-bound lorries to evade customs checks, a practice that puts the migrants’ lives in great danger.