The I'm A Celebrity 2016 camp is said to have become infested with dangerous spiders.
The black funnel web, native to Australia, can kill humans within 15 minutes with no medical intervention.
"If you get bitten by one of these you'll know it, it's like two red hot pokers going into the skin," I'm A Celeb's medic Bob McCarron said on tonight's Extra Camp.
According to the Daily Mirror newspaper, eight of the tiny beasts were removed from jungle set on just one day this year - the most ever recorded in the show's 15 year history.
“The funnel web’s are the most dangerous spider in the world," medic Bob warned. “There is an anti-venom and of course none of the celebs have ever been bitten by them - a couple of crew have been bitten in the past."
He declared: “We’re not going to let anybody die whether it’s a celebrity or a crew member.”
But the assurances may not totally ease the the celebs who will be sleeping with the spiders for up to three weeks.
A show source told the Mirror: “This is really worrying because they are not normally found on set.
“Producers are being extra careful to make sure the celebs don’t get harmed."
The insider added: “They are making camp there home and will soon get used to their surroundings. But a deadly creature would be devastating for the show.”
I'm A Celebrity Get Me Out Of Here continues nightly on ITV at 9PM.