Opposition MPs in the northeast Australian state of Queensland saythe death of a man is a warning to people caught up in the latestinternet craze of planking.

The man fell from a high-rise building on Sunday morning when he tried to plank on a balcony railing.

Plankinginvolves a person lying face down in a rigid position at randomlocations and posting photos of the act on the internet.

Opposition police spokesman John-Paul Langbroek says the craze is dangerous.

"[It]really just shows that these fads that people are coming up with reallycan have tragic consequences if they are not careful," he said.

"Peoplemust understand that it is not the job of police or emergency servicesto save them from situations that could put them in harm.

"Any activities that people carry on, they are not always guaranteed to cause them injury.

"Butif you go to do some of these activities in dangerous places, it canlead to dangerous consequences and that is the thing that Queenslandersmust understand."

Deputy Police Commissioner Ross Barnett saysparticipants can be charged if they plank in dangerous locations, or ifthey trespass.

"Once you start taking it up seven storeys oron top of a set of traffic lights, or on a set of railway lines, orthere are a whole range of things, or on a bridge - anywhere thataccentuates the risk and the daring - that obviously puts it into anarea not only where it can be breaking the law, it more importantly isputting the person at significant danger," he said.

"In somecircumstances it can be fairly harmless, but as people become more andmore competitive and try more and more obscure and difficult episodesof planking, which inevitably lead to greater levels of risk, then wewere - and remain concerned - that this is the sort of thing that willeventuate and no-one wants to see that," he said.