All of the Eritrean nationals were found at around 8.40am on Friday, 14 February.
Paramedics checked them at the scene before handing them into the care of the UK Border Force.
Home Office officials will question the adults while the minors are set to be transferred into the care of social services.
“All of the cases will dealt with according to immigration rules,” a Home Office spokesperson confirmed.
It comes four months after the bodies of 39 Vietnamese nationals were found in a lorry container in Grays.
Tags: Purfleet, Thurrock
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