Why has someone set up camp on Sheffield's Park Square roundabout?

It is one of Sheffield's busiest road junctions - not exactly the kind of place for someone to set up camp.
Park Square roundaboutPark Square roundabout
Park Square roundabout

But as these pictures show someone has pitched their tent underneath the tram bridge on Park Square roundabout.

As well as the precariously placed tent there is also a suitcase, bags, two large yogurt tubs and what appears to be a bin.

Earlier this month The Star reported on the 'tent city' which had been set up on nearby Park Hill. This enclave has now gone.