The world’s largest Lego Christmas tree, standing more than 12 metres high, has been unveiled in St Pancras station with a little help from Islington pupils.

The record breaking structure, which is built from 600,000 bricks, 172 branches and 1,200 baubles, was revealed last Thursday and will stand in the station’s arcade until January 3.

Nolan sisters Linda and Maureen helped switch on the lights and the accompanying show saw performances from West End Kids, a festive steel band and Raymond Briggs’ The Snowman.

Children from Copenhagen Primary School, in Treaty Street, Islington, helped to construct baubles for the tree.

Lindsey Jackson, head teacher at Copenhagen school, said: “It was fantastic, we were really happy to be given this opportunity. They are difficult to make, but we love a challenge at Copenhagen. We had a competition to see which children were fastest at making the baubles and they went down to St Pancras.

“The children absolutely loved it, and everyone here has Lego fever now.”