Air authorities around the world have increased aviation security measures in an effort to close all gaps exposed by the airplane bomb scare in the US last week.
The federal German aviation authority has suspended all passenger flights to Germany on Yemenia Airways and has banned all air freight from Yemen following the bomb plot.
Britain has barred the entry of all unaccompanied air freight from Somalia as well as cargo originating in Yemen, according to the Los Angeles Times.
The UK Government has also prohibited all printer toner cartridges weighing more than 1.1 pounds from passenger carry-on bags for at least a month.
The United States has stopped all cargo and mail shipments from Yemen.
The heightened security measures follow the interception of two US-bound aircraft from Yemen carrying powerful explosives in booby-trapped computer printers.