FIREFIGHTERS battled a blaze at the site of the former Batley General Hospital on Sunday.
The disused building, on Carlinghow Hill, was engulfed in flames with emergency crews attending from around 4.10pm.
Smoke could be seen from several miles away – and the fire is being investigated as possible arson.
A total of 10 fire engines and two aerial platforms from Dewsbury, Bradford, Ossett, Leeds and Halifax were needed to put out the fire at the Victorian building, which closed in 1988.
Firefighters remained on site until Monday evening to ensure it was fully extinguished.
Nobody was hurt during the blaze and investigators are trying to establish how it started.
Opened in 1878, the former hospital became a care home in the 1990s and was due to be used as the new home of the fee-paying Zakaria Muslim Girls High School – but that plan has not come to fruition.
Back in 2014 school officials announced a £1.5m transformation of the site into a secondary school and sixth form.
The former hospital on Transvaal Terrace was due to be transformed internally and adapted to form classrooms and other facilities for up to 250 pupils.
Work stalled, but a photo of the hospital building remains on the school’s website.
Zakaria Muslim Girls’ High School did not respond to our request for a comment.
Police say enquiries are ongoing and anyone with any information is asked to contact officers via 101, quoting 13170455239.
Information can also be passed to Crimestoppers on 0800 555 111.