The US airline Delta is working with the FBI and officials in the Netherlands to find out how sewing needles ended up in sandwiches that were served on several of its flights.
Sewing needles were found in at least five turkey sandwiches, according to the Associated Press.
Delta spokeswoman Kristin Baur said that the airline immediately stopped serving the sandwiches when the problem came to light, and messages were sent out to other flights from Amsterdam.
Passengers were reportedly served pizza instead and the airline is serving more pre-packed food until the situation is resolved.
A spokeswoman from Gate Gourmet, the Dutch caterer used by Delta, has said that the company is cooperating fully with investigators. Christina Ulosevich added that "details of this matter must remain confidential".
Gate Gourmet is a subsidiary of Swiss-based gategroup Holding AG, one of the largest independent global providers of airline passenger products and services.
The needles were found in sandwiches on four US-bound flights from Amsterdam. Two of the flights were bound for Atlanta and the other two for Minneapolis and Seattle.
The airline Delta has released this statement in response to reports that sewing needles were found in its in-flight food: "Delta is taking this matter extremely seriously and is cooperating with local and federal authorities who are investigating the incident.
"Delta has taken immediate action with our in-flight caterer at Amsterdam to ensure the safety and quality of the food we provide onboard our aircraft."
One person on a Delta flight from Amsterdam to Minneapolis was injured as a result of a needle in their sandwich. They declined medical treatment.
The US airline Delta is working with the FBI and officials in the Netherlands to find out how sewing needles entered in-flight meals.
The needles were found in sandwiches on four US-bound flights that left Amsterdam on Sunday.
Delta spokeswoman Chris Kelly said in an email to Reuters that the sandwiches were prepared by the airline's Amsterdam caterer, Gate Gourmet.
Needles have been found in meals on four flights operated by the US airline Delta, Reuters reports.