Police are appealing for information after fire-raisers targeted a derelict factory in Moray.
Vandals struck at the former Grampian Country Pork plant in Buckpool, where a 43-year-old demolition worker was killed earlier this year.
Work to flatten the site was suspended following the accident so a health and safety investigation could be carried out.
A caravan outside the former pig-processing plant was set alight and completely destroyed in Friday’s attack.
The blaze also caused significant damage to the outside of one of the three buildings which remain standing on the site.
Residents living nearby described seeing huge flames shooting into the sky shortly before midnight.
Jen McCauley, 69, called the fire brigade after her two dogs alerted her to the blaze.
She said: “It’s the second time the fire engines have been here since the accident stopped the demolition work.
“The place is a health hazard and a danger. It’s about time that something got done with it.
“Somebody is going to be killed or seriously injured if it isn’t.
“The site is just too open and too big to keep the vandals out.”
Other residents reported seeing people clambering up and down a grass bank which surrounds the perimeter of the factory on various occasions.
Another derelict caravan and three scrapped vehicles in various states of disrepair were sitting beside the burnt-out remains of the torched caravan yesterday.
The Grampian Country Pork plant closed in November 2005 with the loss of 330 jobs.
Stuart Thompson, who lived in Lancashire, was working for a Manchester-based demolition firm when he died at the site in January.