A man in his 60s has been arrested in connection with an investigation linked to the discovery of traces of uranium found in a cargo package at London's Heathrow Airport, the UK Metropolitan Police said on Sunday.
The man was arrested on suspicion of a terror offence on Saturday and was released on bail as part of the investigation, the Police said.
A very small quantity of uranium was detected in a package that arrived at Heathrow Airport on Dec. 29.