Looks to me that it's real, but it also requires context.

Here in the UK over the last couple of days an abandoned container in a storage facility was found to contain rotting human body and animal remains from a company that went bust contracted to incinerate biological waste.

These remains could be dishonestly disposed of autopsies or from a mortuary or undertaker. It could also be something far more nefarious such as organ trafficking, child sacrifice or the result of abandonment neglect and cover-up in an orphanage.

Personally I would think that criminals would do a better job of covering tracks. This looks like an act of crass stupidity and incompetence rather than something organised. Mortuaries etc. can often attract pretty rum and odd employees.