The departure lounge has been partially evacuated
Heathrow Airport's Terminal 4 has reopened after a suspect bag sparked a security alert.
The Metropolitan Police said it was dealing with the item which was found at the terminal just before midday.
But thousands of departing passengers are facing long delays as airport officials begin re-screening them.
All international flights from the terminal were cancelled until the evening while all European flights have been cancelled until further notice.
The alert comes after failed terrorist attacks in London and Glasgow....
A spokesperson said: "We have had to cancel 108 flights in total.
"Our flights to and from Terminal 1 at Heathrow are operating, but with some delays."
Isn't that swell? But wait - there's more!
Earlier on Tuesday a controlled explosion was carried out on a suspect device near Hammersmith Tube station.
During the morning rush-hour the station in west London and surrounding roads were closed when a suspect device was found at about 0825 BST.
There was an unconfirmed report the suspect objects had turned out to be three abandoned fire extinguishers.
Up to 8,000 commuters were forced to find alternative routes into work as Hammersmith and Barons Court stations were closed for an hour.
There were also severe delays for motorists as Hammersmith Broadway was closed between King Street and Shepherd's Bush Road as well as Hammersmith Bridge.
What does it all mean? Well, it means that all the Islamofascists have to do to shut down Britain's capital is to leave knapsacks and briefcases casually unattended in airport terminals and at Tube stations. No bombs required: the extra precautions that these suspicious packages will trigger will shut down transport and cost the economy billions of pounds.