Irregular migration to the UK "is increasing", an anti-trafficking expert said.
Andy Desmond, Director of Anti-Trafficking Consultants, told Good Morning Britain that the hot weather simply makes cases, such as those of migrants in lorries, "more overt because of their own distress."
Following the discovery of 35 Afghan Sikhs in a shipping container at Tilbury Docks at the weekend, a lorry has been discovered carrying 15 migrants with suspected dehydration in Somerset. The German driver has been arrested.
More top news
A look ahead to the forecast for today across the UK.
Tackling and scrums should be banned in school rugby games due to the risk of serious injury, according to health experts.
Luke Sinnott has won a gold medal in the 200 metre sprint for amputee competitors, now he is giving it to the family of a fallen soldier.