An entrepreneur whose businesses have been visited by A-list celebrities, including George Clooney, has been awarded an honorary degree.

The Social Bite sandwich shop chain, founded by Josh Littlejohn, shot to fame when Clooney visited in 2015.

Hollywood star Leonardo DiCaprio also visited Mr Littlejohn's Home restaurant in Edinburgh's Queensferry Street last year.

The homelessness campaigner set up a "pay forward" scheme allowing customers to buy food from the menu so a homeless person could eat for free.

On Friday, Edinburgh Napier University made him an honorary doctor of enterprise.

Mr Littlejohn, 30, said: "It is a privilege to receive this honorary doctorate from Edinburgh Napier University.

"I wasn't much older than the young people graduating here today when I first started Social Bite, where I am lucky to work alongside a fantastic team.

"I would urge today's graduates to get behind a cause that they too are passionate about, and wish them every success in their future endeavours."

The entrepreneur is currently involved in finalising designs for a village for the homeless in the north of Edinburgh.

First Minister Nicola Sturgeon supported the venture by serving breakfast to business leaders who took part in a fundraising Sleepout in Charlotte Square last December.

Others given honorary degrees on Friday included Dr Peter Bonfield, chief executive of the BRE building group, and Professor Julie Fitzpatrick, scientific director of the Moredun Research Institute.

Professor Andrea Nolan, the university's principal, said: "It is wonderful to see people who have made such a significant impact in the worlds of business, science and industry joining our celebrations.

"Their drive, talent and enthusiasm will inspire our students as they set out to make their own mark on the world."