The protesters also wrote an offensive word under the statue in Glasgow's Kelvingrove Art Gallery and Museum.

Police Scotland were called to the museum in Glasgow's west end following reports of alleged vandalism.

A new permanent exhibition in Kelvingrove Museum has opened exploring Glasgow's links to slavery.

Paul Carroll chose the theme from US sitcom Friends, I'll Be There For You, for the gallery's daily recital.

Strike action will continue until October 27 and could cause other museums and galleries to close.

The museum and the city chambers are among the assets to be re-mortgaged to cover pay claims.

It is the first repatriation to India from a UK museum, with more items under review to be returned.

The retrospective features dozens of self-portraits as well as paintings of famous friends.