The Asian Giant Hornet, which also goes by the nickname of the "murder hornet," has made its way to Washington State, the New York Times reports.
The hornets can grow up to two inches in length, with a quarter-inch stinger. While one sting may not be fatal, multiple stings can cause a person to go into shock. The hornets are aggressive when defending their territory.
The hornets are estimated to kill 50 people a year in Japan alone.
The hornets are also bad news for native honey bees. While bees familiar with the hornet have developed ways of defending their hives, bees with no knowledge of the hornets can be an easy food source for them.
The hornets have also reportedly been seen as far north as Vancouver Island.