Part of the CowParade public art installation in Londonderry is being moved indoors after being attacked by vandals.
Two of the fibreglass animals which form part of the CowParade NI were targeted at the weekend.
The two life-sized sculptures were located in the heart of the city centre at a landscaped park opposite the Guildhall.
The cows were painted by local artists and community groups at the Playhouse Theatre and at Maydown.
They are now being removed so the damage can be assessed, and as a result of the destruction they will be relocated indoors once repaired.
It has also emerged that other cows have previously been damaged on both sides of the river.
Organisers are now in a race against time to get all the damaged cows ready in time for them to be auctioned off for charity next month.
There are 15 cows in the Derry herd, eight of them located at Ebrington parade ground, four in Guildhall Square, two at the city centre park and the Undertones cow, which is inside Tower Museum.
Another herd of mini-moo calves are located at Foyleside Shopping Centre, and these will be distributed to the schools that created them after the auction.
Derry City Council and the city’s regeneration company Ilex provided the funding for the CowParade.
The council’s tourism development officer Deirdre Harte said it was extremely disheartening to see the artworks being vandalised.
“People are really gutted by it. These artworks were created with people in communities right across the city and weeks of work went into them, not just by the artists but the communities. It is just too risky to put them back in an outdoor location,” said Ms Harte.