Caitlin Cameron says she found the mouse in a newly-opened bag of rabbit muesli.

And it prompted her to write the following on her Facebook page: “I am ragin!!! So I got my rabbit food from Poundland… not thinking anything of it.

“I open the packet to feed Simba and start putting some in her bowl and here comes a dead mouse.

“Don’t buy any food for your pets! I’ll be phoning the company it’s a joke I’m ragin! Plz share.”

A Poundland spokeswoman told the Evening Express newspaper: “We’re sorry to hear of this. The store has spoken to Caitlin and refunded her £2. We’re clearly as keen as her to know from our supplier how this happened.”

Pictures taken from Caitlin Cameron's Facebook page.

The full story can be read on the Evening Express website by clicking here