A road traffic calming design likened to a "ghost roundabout" has been mocked on social media.

The cobbled brick circle appeared on Tenison Road, in Cambridge.

It is part of £500,000 worth of traffic calming measures but has been described as a "UFO landing pad" and an "urban crop circle" on social media.

Cambridgeshire County Council said it was designed to slow down traffic by confusing drivers.