The borderguarding force didn't allow the passengers to leave the plane because of too small transit area in this airport. Only to the port's bathrooms in accompanied groups :)
A photo gallery from an airport employee (scroll to #633 an ahead)
The good news is that the engines on the 777 are so huge, they can take off and land with just one engine.
I flew a 777-200 (United - never fly United) trans-Atlantic last week. First time on one. I was a nice experience from the aircraft stand point.
I flew Korean once and once only.
Looks like a regular US passenger a/p. “Jetways” and typical ground support equipment.