M4 closed near Heathrow Airport following ‘multi-vehicle crash’ – as cops launch urgent probe into collision

A MAJOR motorway has been forced to close near a busy airport after a "multi-vehicle collision" - as cops launch an urgent investigation. Drivers travelling on the M4 near Heathrow Airport have been warned of 20-minute delays following the horror smash in the early hours. Cops have launched an urgent investigation into the "serious collision",...