Families of Japanese people abducted by North Korea in the 1970s and 1980s expressed regret Friday at U.S. President Donald Trump's decision to cancel a summit with North Korean leader Kim Jong Un, but remained hopeful they will eventually be reunited with their long-lost kin.

"Neither North Korea nor the United States can keep doing nothing," said Sakie Yokota, 82, whose daughter Megumi was taken from Niigata Prefecture in 1977 at age 13 while on her route from school.

The teen's abduction story was shared by Trump in September during his address at the U.N. General Assembly.