The US president Donald Trump says he will no longer meet the North Korean leader Kim Jong-un.
The pair had agreed to talk face to face by the end of May.
This was a really big deal because the two countries have argued so much in the past.
Mr Trump announced the cancellation in the form of a letter addressed to Mr Kim.
Ayshah has all the details.
If you want to know more about North Korea and why it's so often in the news, check out our guide.