An investigation is underway into a package that was seized at a London airport containing a "small" amount of uranium.
The package was identified by Border Force officers during routine scanning at Heathrow Airport on Dec. 29, and investigators wonder why the package was concealed. It was sent from Pakistan to be delivered to an Iranian-owned business in the United Kingdom.
Metropolitan Police said there is no threat to the public and the amount of uranium was "very small."
Uranium is a nuclear material that, when enriched, can be used to make a nuclear bomb. It was found in bars encased in a package containing scrap metal. Investigators are working to determine if the uranium was intentionally concealed in the shipment or if it is a result of poor handling.
United Kingdom counter-terrorism police are investigating the incident to determine if the uranium shipment was meant for constructing a dirty bomb at its destined site. No arrests have been made.