First US murder hornet nest located in Washington state

• State agriculture department posts video of Asian giant hornet
• Officials had hoped to find nest before hornets' murder phase'

The first nest containing Asian giant hornets, also known as murder hornets, on US soil has been discovered in Washington state.

State officials have been searching for the nest following half a dozen sightings of the hornets in and around the city of Blaine, which is close to the border with Canada. Officials hoped to find the nest before the hornets entered what is known as a slaughter phase" where they decimate nearby honeybee colonies.