WASHINGTON (Kyodo) North Korea would attack Japan if a war erupted as a result of efforts to implement recently strengthened U.N. sanctions against Pyongyang over its second nuclear test, a U.S. scholar said Wednesday.

Selig Harrison, Asia program director at the Washington-based Center for International Policy, sounded the warning during a House Foreign Affairs Committee subcommittee hearing on North Korea policy.

"In the event of another war with North Korea resulting from efforts to enforce the U.N. sanctions, it is Japan that North Korea would attack, in my view, not South Korea," said Harrison, who visited North Korea in January.