Fishermen operating off Hokkaido expressed anger and fear Saturday after a North Korean intercontinental ballistic missile landed in nearby waters overnight.

"We can't lower our guard as we don't know when they will launch," said 83-year-old sea urchin fisher Takashi Tobuyama. "But we can't keep looking up while we are fishing."

Tobuyama was fishing near Okushiri Island, about 18 km off Hokkaido and around 150 km from where the missile landed. Fishing is the residents' main source of income.