Since we keep bees, I've learned more about hornets than I ever thought I'd want to.
All of the county/regional Bee Keeper organizations in TN have had training sessions given by a state entomologist so that beekeepers can monitor and report sightings of unusual hornets and wasps.
There are 2 slightly different "Asian" hornets. One is the Asian Giant and the other is sub-species called the Japanese Giant Hornet. To me, the pic in the article which shows a hornet in Northfleet, Kent, looks more like a Japanese Giant. The Asian Giant tends to have wider brown/black striping than yellow. But it's hard to tell because ID also relies on coloration of antennas, mandible and placement of eyes.
An Asian Giant:
But it's really a moot point as both are pretty bad news.
Both are dangerous to people, animals and bees. There are a few other insects that have more a more toxic venom. But their toxicity is pretty high and, more importantly, because of their size they can deliver a huge amount of venom in one sting.
There have been reports of sightings of both types in the southeastern/midwestern U.S. over the past several years. Of course, it's impossible to confirm most of them, and it's likely that at least some are actually the European hornet, which was introduced to North America in the 19th century.
Here in East TN we have what are locally called "Bowater's Hornets" or wasps. Bowater
(now known as Resolute Forest Products) produces paper products and owns thousands and thousands of acres of land where they grow pulp pine trees. What used to be their largest paper production plant is in a tiny little town about 40 miles from where we now live and there's Bowater owned pine plantations within a couple of miles. When the pine beetle population went crazy in 1999/2000, Bowater suffered significant losses in their pine tree plantations. It's rumored (and will probably never be confirmed) that the company introduced the Japanese Giant hornet to their holdings in an effort to kill the pine beetles.
I've seen a Bowater Hornet 3 times and somewhere I have pics of 2 of them (which of course I can't find at the moment). I'm pretty sure that they are the Japanese Giant. They're huge, both in length and width (for a size comparison, picture it as a carpenter bee but less fuzzy looking and much longer), and the coloring pattern on the abdominal section is noticeably different from our usual, native hornets. In fact, I think that there's one hanging around my bedroom window but it hasn't stayed on the window long enough to really see it close-up or even get a pic.
If you do see one, don't provoke it with a lot of arm movements. Try to just move away slowly. If you're able to get a pic, or catch/kill one, it would be really helpful for you to report it to your local Ag Extension Office or state entomologist office.