The Coronation Street actress and husband Matthew spotted the lifeless 26-year-old man in the back of a parked Vauxhall Combi van in Greater Manchester yesterday.
Samia, who plays Maria Connor in the soap, immediately called the police.
'Inquiries to establish the circumstances surrounding the man's death are under way,' Greater Manchester Police tells the BBC.
'His family are in the process of being informed.'
A Corrie spokesperson adds that it now 'a police matter'.
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