Two Hong Kong airport security staff have been killed after a cargo plane from Dubai skidded off the runway on landing, collided with their security patrol vehicle and pushed it into the sea, the city's airport operator said.⁣ ⁣ The Boeing BA.N 747 involved in the deadliest airport incident in the financial hub in more than 25 years also fell into the water and was partially submerged, but all four crew members on board escaped.⁣ ⁣ #hongkong #planecrash