PHILADELPHIA (CBS) —  This morning some world leaders say they’re cautiously optimistic about North Korea’s plans to stop its nuclear and missile tests.

Japan’s Prime Minister, Shinzō Abe, says the announcement has to lead to the complete, verifiable, and irreversible dismantlement of the nuclear and missile programs.

READ MORE: Phillies Slugger Bryce Harper To Remain As DH When He Returns From Broken Thumb

Australia’s Foreign Minister, Julie Bishop, said the same thing.

Early Sunday, President Trump released a similar statement on Twitter.

He wrote, “We are a long way from conclusion on North Korea, maybe things will work out, and maybe they won’t – only time will tell.”

READ MORE: Lawsuit: 2 Wilmington Residents Claim City Illegally Towed, Scrapped Vehicles

Saturday, Kim Jong-un said he was suspending North Korea’s nuclear weapons testing.

He said the country had finished weaponizing nuclear arms.

United Nations Ambassador Nikki Haley says pressure from the security council helped get to this point.

MORE NEWS: 2022 On Pace To Be Even Deadlier Year In Philadelphia Than Record-Setting 2021