Vandals have left a primary school looking "like a bomb went off", according to its head teacher.

Every room in Glasgow's Gowanbank Primary was damaged during two incidents on Sunday and Monday, with repairs likely to cost upwards of £10,000.

All of the school's computer monitors were smashed or scratched beyond use.

Smart boards were pulled down from the walls and obscene illustrations were drawn on white boards - including one in an infant class.

All crockery throughout the school was smashed while fire extinguishers were set off in the corridors.

Two microwaves in the staffroom were also smashed after being used to make popcorn.

The vandals paused only to steal jelly and ice cream from a fridge in the school canteen.

Head teacher John Daly said: "It looks like a bomb has gone off. Nothing was stolen, everything was just trashed.

"It was nothing but wanton vandalism and it is very deflating. It may only be a building but this completely takes away from providing our children with a safe and protective learning environment.

"It feels awful that our personal space has been invaded."

Mr Daly said he was now trying to replace the school's IT equipment and find new crayons and drawing equipment for pupils.

He added: "Although the crayons are still there, I don't want them in the children's hands as we don't know what they have been used for or where they have been.

"It's my job, and the job of my deputy, to minimise the impact on children.

"One silver lining is that there are still a couple of weeks before school goes back so we will be able to get the place back up and running."

Gowanbank has been targeted by vandals before and is one of five schools in the city to be vandalised during the summer holidays.

Liz Cameron, Glasgow City Council's executive member for children, young people and lifelong learning, said the vandalism was "soul destroying".

She said: "Our schools work towards the fulfilment of our children's dreams and this sort of mindless damage is treading on their dreams.

"The respect for education shown by these - let's be blunt - thugs is nil.

"I'm saying to everybody in the community - our schools are there for your children and your grandchildren and it is the responsibility of everyone in the community to look after them.

"Our schools are the most treasured thing in our city and we all must protect them.

"It is soul destroying. Our schools are beacons of light in what is a very troubled world and they must be treated as such.

"We have the city's children during the day and we instil values and citizenship in them - but we cannot do that alone. We need parents and community members to reinforce those values."

Police Scotland are investigating the Gowanbank vandalism and Ms Cameron said she would be working with Community Safety Glasgow to develop a strategy to protect schools.

She added: "If these young people want to get into our schools then they will.

"But do I want our schools locked up against everything our community does in them? Absolutely not.

"People need to ask themselves, 'What would a good citizen do?'

"And there may be some reluctance in calling the police but they must call the police - and keep calling them."