In a Facebook post, Sarah-jane Williams says she found fly eggs embedded inside the popcorn chicken she ordered from the KFC restaurant in Pukekohe, south Auckland.

Popcorn chicken is a popular KFC product made of “bite-size” pieces of fried chicken.

Williams wrote a public post on a Facebook group page on Friday, saying: “I brought popcorn chicken from Pukekohe KFC today for lunch and I found [a] nice surprise in with some of it. Some fly eggs.”

She later made a complaint on KFC’s Facebook page.

KFC responded on Facebook: “We’re really concerned to see this and we need to investigate this with you.”