ITV News understands that the man arrested in connection with the 15 people found in a lorry in Somerset is the driver.
ITV News producer Sandi Sidhu has tweeted:
Man arrested by Avon and Somerset police is the driver of the lorry, police say he is from Germany.
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Sir Vince Cable, Caroline Lucas, Tony Robinson and Gina Miller led a demonstration on the second anniversary of the EU referendum.
Turning hot over the next few days. High pollen and UV levels.
The march took place on the second anniversary of the EU referendum.