An Alabama McDonald's has denied intentionally spiking a Muslim family's McChicken burgers with bacon.
The family bought 14 sandwiches from a McDonald's restaurant in Decataur, Alabama on Monday, reports local news site Decataur Daily.
When they bit into the tasty treats, several of them detected a strange "smoky" taste none of them recognised.
It was bacon - which is a forbidden food in Islam.
"The bacon was either on top of the chicken or hidden underneath within the sandwich so [the family] couldn't tell if it was there or not," Council on American-Islamic Relations executive director Khaula Hadeed said.
McChickens do not normally contain bacon, and the pieces were small, so could not be seen before eating.
"That's why we think this was intentional," said Ms Hadeed.
"[The family eats] McChicken all the time at McDonald's," she told news site alabama.com. "They knew what they ordered - they know what's in the sandwich."
A short video posted to YouTube showed the small bacon bits inside the burgers, but McDonald's has denied any malice, saying it was not an "intentional act".
"We value every customer and strive to ensure all orders are accurately prepared and served," owner/operator Rick Walter said in a statement.
"We are looking into the matter to understand what happened."