An investigation has been launched into how a fake bomb was put on a cargo plane and flown from the UK to Turkey without being detected.
The UPS flight travelled to Istanbul with the package, reportedly containing a timer, wires and a detonator.
The UK Department for Transport said it was taking the matter "very seriously".
A 26-year-old man arrested on suspicion of making a bomb hoax was detained on 23 March but later bailed to return to a north London police station in May.
Police stressed the incident was not terrorist-related.
A Turkish man had delivered the package, disguised as a wedding cake box, to a UPS office in Camden, north London, a fortnight ago, according to ITV News.
A Department for Transport spokesman said: "We have already begun an investigation which will look at all aspects of this incident, including UPS's procedures.
"The UK has one of the toughest security regimes for air cargo in the world. All security measures are subject to continuous review."
Ink cartridge bomb
A UPS spokeswoman said: "Two weeks ago, a suspicious package travelled within the UPS network aboard an all-cargo aircraft from the United Kingdom to Istanbul, Turkey.
"UPS is co-operating with the UK Department for Transport's investigation of the incident. UPS has a multiple-layered approach to ensure security."
Details of which UK airport the flight took off from have not been released at this stage.
Who- British Airplane pilots
What- The British found a bomb hidden in a UPS plane inside of a wedding cake box.
Where- United Kingdom to Turkey
When- March 23rd
How-A Turkish man delivered the package, disguised as a wedding cake box, to a UPS office in Camden to north London
Why- They don’t know why he did it, but he has been arrested for a suspicion of creating the device.
This article took place on March 23rd. It is about British airplane pilots. They found a bomb hidden in a UPS airplane on the way to Turkey. A man who delivered the package hid it in a wedding box for disguise. The box was full of wires, a timer and a detonator. They don’t know why he did it, but he has been arrested for a suspicion of making the bomb. Thankfully on the way to Turkey the bomb didn’t explode
