Metal studs have gone up outside a block of flats in London, appearing to stop people loitering in the doorway.
Sally Hitchiner posted photographs of the doorway, prompting hundreds of comments on social networking site Twitter. She believes they have been placed there to stop homeless people sleeping there.
Anti-homeless people studs outside 118 Southwark Bridge Road, London. Such a negative message! http://t.co/OBziMGpPlb