Flights from London's Heathrow airport are halted for about an hour after a drone is sighted near Europe's busiest air hub, raising fears that the chaos that affected rival Gatwick last month could be repeated on an even larger scale.
Flights from London's Heathrow airport are halted for about an hour after a drone is sighted near Europe's busiest air hub, raising fears that the chaos that affected rival Gatwick last month could be repeated on an even larger scale.