But it soon became apparent to pupils and parents at Rothwell Junior School that it was just a fake crash scene.
The scenario had been organised with the help of police officers from Corby as part of a whole school writing day.
PC Mark Walker said: “Rothwell Junior School children were met with a very unexpected scene when they arrived at school.
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“Father Christmas’ sleigh had crashed into their playground and his reindeer were running loose.
“This unusual scene was set up to excite and inspire the children ready for a whole school writing day based upon Tolkien’s book, Letters from Father Christmas.”
Year 6 teacher Mrs Walker said that all the children had a wonderful day, loved meeting the reindeer and produced some ‘exceptional writing.’
The reindeer were provided by Real Reindeer in East Carlton, and PC Walker added: “Luckily local police officers were on hand to manage the scene and investigate what had happened.”
PC Walker was joined by PC Brad Wilson for the event held last month.