China does what?

Yesterday, a city in China Diverted Aircraft because of a UFO.

Not a random blip on a radar, which is what I thought when I first saw this story, but an actual flying saucer. Well, a tubular floating tube, according to witnesses bit it’s still a ‘flying saucer’ in my book, dammit. I can understand the logic of this, if there’s something in your flight path (and I suppose that advanced aliens have anti radar technology, surely) you don’t want to fly there, but it still sounds funny and silly.

According to some sources China is developing classified, advanced fighter aircraft and this could be one of them, although the government is denying it (although they would, whether it’s true or not). I wonder if this makes it a foo fighter (yes I know they’re Japanese)?