Birmingham Airport's Communications Officer, Sarah Collyer, said today the small Saab 340 aircraft with three crew aboard was intercepted as it arrived in British airspace from Bucharest.
She said the plane was "safely escorted to Birmingham International Airport," about 190 kilometres north of London.
The airport's runway was closed for about 30 minutes after the plane, which was carrying freight, landed early today.
The interception, by two Typhoon jets and a Voyager, was "in accordance with normal operating procedures," she says.