The Department of Homeland Security (DHS) has warned international flights flying into US from abroad of a possible shoe bomb threat.

Sources familiar with the matter reportedly said that the warning is not specific to an airline or time frame, and is based on very recent intelligence, but not related to domestic or outbound flights.

A statement from the DHS said: "Our security apparatus includes a number of measures, both seen and unseen, informed by the latest intelligence and as always DHS continues to adjust security measures to fit an ever-evolving threat environment."

"DHS continues to adjust security measures to fit an ever-evolving threat."

According to intelligence collected by the US and other allies, terror groups are working on new shoe-bomb designs that include cosmetics and liquids, CNN reported.

The bulletin issued by DHS called on screeners for enhanced security screenings of passengers’ shoes.

Earlier this month ahead of Sochi Olympics, Homeland Security warned airlines flying to Russia about explosive devices possibly hidden inside toothpaste.

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.

Some airports in the US have already tightened airline security after Richard Reid tried to ignite explosives in his shoes on a flight from Paris to Miami in late 2001.