Twitter investigating photo preview system after racial bias claims

Twitter users identified a problem with the preview algorithm used to focus on certain areas of an image (Yui Mok/PA)

Twitter has said it is looking into claims the social network’s photo preview algorithm could be racially biased after users posted a series of examples over the weekend.

The tech giant uses a system called neural network to automatically crop photo previews before you can click on them to view the full image.