Americans have grown increasingly concerned that North Korea poses a very serious threat to the United States, according to a new CNN Poll conducted by SSRS.

Almost two-thirds of those polled, 62%, say Kim Jong Un’s isolated dictatorship poses a deep threat to the US, up from 48% who said the same in March and the highest that figure has been in polling dating back to 2000.

That shift comes as 77% say they think North Korea is capable of launching a missile that would be able to hit the US.

The poll was completed after news reports of North Korean missile tests involving intercontinental ballistic missiles which have the potential to reach the US under the right conditions. Interviewing for the poll wrapped up on Monday, before an eventful Tuesday when news emerged that US intelligence believes North Korea has miniaturized a nuclear warhead and President Donald Trump threatened to respond to Pyongyang with “fire and fury” should they threaten the US.