Kids are being warned not to play near traffic after a 10-year-old boy died falling from the back of a lorry onto a busy road.
Jordan Lee Widdall-Hughes, from Newport, Wales, was taken to hospital on Tuesday with head injuries but sadly later died.
It's thought he had climbed onto the back of the lorry but as it drove off, he fell and seriously hurt his head.
Special counsellors are going into Jordan's school to talk to his friends.
Two other boys were on the lorry with Jordan but they are not hurt.
Gwent Police said there seemed to be a growing trend in the area for kids to play on or around moving traffic, something called car surfing
Chief Inspector John Pavett said: "This is a terrible tragedy and unfortunately Jordan's actions have had fatal consequences."
He added: "We want to send out a clear message to other children and their families that it is not a playground nor a place for practical jokes, which can - as we have seen - go tragically wrong."