This picture taken on November 24, 2015 shows coast guard officials investigating a wooden boat at the Fukui port in Sakai city in Fukui prefecture, western Japan after the ship was found drifting off the coast of Fukui. Japan is investigating nearly a dozen suspicious boats recently found drifting off the country's coastline, some with decaying bodies aboard, officials said on November 27, as media speculated they came from North Korea. At least 11 cases involving wooden boats -- some badly damaged -- with 20 bodies on board have been reported during October and November.
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This picture taken on November 24, 2015 shows coast guard officials investigating a wooden boat at the Fukui port in Sakai city in Fukui prefecture, western Japan after the ship was found drifting off the coast of Fukui. Japan is investigating nearly a dozen suspicious boats recently found drifting off the country's coastline, some with decaying bodies aboard, officials said on November 27, as media speculated they came from North Korea. At least 11 cases involving wooden boats -- some badly damaged -- with 20 bodies on board have been reported during October and November.
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Story highlights

The man traveled from North Korea across the Sea of Japan by boat

He said he fled because he was being chased by police

Tokyo CNN  — 

A man claiming to be a North Korean citizen was found wandering around the Japanese port town of Senzaki this weekend, police told CNN.

Officials from Yamaguchi Prefecture said the man was interviewed by police, but would not disclose further information to CNN.

According to a report by CNN affiliate NHK, the man traveled from North Korea across the Sea of Japan by boat, saying “the man was drenched (in water) when police took him into custody.”

The man, believed to be in his twenties, told police that he left Chongjin, the capital of North Korea’s Hamgyong Provice, on Friday night in a wooden boat, broadcaster NHK reported.

He claimed to have jumped from the boat into the sea with a plastic container and drifted to Senzaki by Saturday morning.

The man said he was fleeing North Korea because he was being chased by police after he was caught watching South Korean videos, the Asahi Shimbun newspaper reported.

The man was transferred to Omura Immigration Center in Nagasaki on Sunday, where immigration officials will decide his future based on confirmation of his identity and claims of defection.

South Korea’s Foreign Ministry told CNN it was “working to confirm the situation.”

In recent years, Japan has seen a number of wooden boats wash up on its shores. Evidence suggests the boats, some of which have contained decomposed bodies, come from North Korea.

But it’s not clear whether they were attempted defectors or fishermen who’ve strayed too far from land.

Mysterious Korean ghost ships found in Japan: What we know

CNN’s KJ Kwon in Seoul contributed to this report