Two boys have admitted causing a fire which severely damaged a school.
Parts of St Mary's Catholic Technology College in Leyland, Lancashire, were demolished after the blaze during last year's summer holidays.
The youths, who are aged 16 and 14 and cannot be named for legal reasons, pleaded guilty to arson at Preston Crown Court.
They were remanded on conditional bail to be sentenced at the same venue on 28 November.
The prosecution offered no evidence against three other boys who were originally charged.
At its height, 125 firefighters tackled the fire on 1 September, 2013.
The school said it was aiming for new buildings to be open by next September.