Bedfordshire Police are investigating an overnight fire at Ely Way, the home of the Luton Town Community Trust.
Bedfordshire Fire and Rescue and Bedfordshire Police were called at 11.10pm on Monday evening to reports of a fire at the Luton Town Community Trust Building.
A spokesman for Bedfordshire Police said: "The fire service was in attendance to put the fire out in a mobile unit, which was being used as a changing room.
"We attended to assess the scene. We are working with fire investigators who are looking into the cause of the fire."
Ely Way, is also the venue for Luton Town Football Club's academy fixtures.
In a statement issued this morning, a Hatters spokesman said: "We are sorry to report this morning that an overnight fire has caused extensive damage at Ely Way, the home of the Luton Town Community Trust and venue for our academy fixtures.
"Large parts of the portakabins have been gutted, including the loss of laptops and equipment used for educational purposes, files, furniture and belongings.
"Bedfordshire Police are currently on site carrying out their investigation into the cause.
"As a result, please be advised that there may be some disruption to both Community Trust and some academy services in the short term."
Anyone with any information should call 101 or visit the force's online reporting tool at www.bedfordshire.police.uk/report quoting reference 0463 of 9/9/19.