The gallery expressed that these attacks have not only damaged artworks but have also caused distress to visitors and staff, disrupting its mission to make art accessible to everyone.

In response to the backlash, Just Stop Oil has proposed a meeting with the National Gallery's director, pledging to avoid damaging protests in the future.

Visitors are now encouraged to bring minimal items and avoid large bags, as all entrances will feature walk-through metal detectors for security checks.

With the recent rise in targeted protests, the gallery's new measures reflect a growing concern over the safety of both its artworks and its visitors.

The recent protests have included various forms of disruption, with activists gluing themselves to artworks and causing significant damage.

The National Gallery, which houses over 2,300 significant paintings and attracts around three million visitors annually, aims to ensure a safe and welcoming environment despite these challenges.

In one notable incident, two Just Stop Oil activists were jailed for throwing soup at 'Sunflowers,' resulting in damage estimated between £10,000 to £20,000.

The National Gallery in London has announced a ban on liquids for visitors, effective October 18, 2023, in response to a series of attacks on its iconic artworks.

This decision follows multiple incidents where activists, particularly from the group Just Stop Oil, have caused physical damage to renowned pieces, including Vincent van Gogh's 'Sunflowers' and John Constable's 'The Hay Wain.'

In light of these events, the National Museum Directors' Council has called for an end to protests in museums, emphasizing the need for a safe environment for all.

Exceptions to the liquid ban include baby formula, expressed milk, and prescription medicines, allowing for some flexibility for visitors.

Past attacks have included activists splashing soup on famous artworks like the Mona Lisa, highlighting the ongoing tensions between climate activism and cultural preservation.