The British government has introduced emergency restrictions on air freight due to the discovery of two bombs on board cargo jets bound for the US last week.
Theresa May, the UK home secretary, has suspended all unaccompanied air freight traffic from Somalia, and has banned air passengers from carrying printer cartridges larger than 500g in hand luggage. While all shipments of cartridges transported by air from unapproved sources via or from the UK have been halted.
The move comes as Germany calls for tougher international security rules for air freight.