India, Feb. 14 -- The powerful sister of North Korean leader Kim Jong Un said on Friday it was "sensible" for a South Korean Government official to express regret for alleged civilian drone flights over North Korea but warned of counter attacks if they recur. The statement by Kim Yo Jong came after South Korean Unification Minister Chung Dong-young on Tuesday expressed "deep regret" over the alleged flights and stressed that Seoul's liberal Government seeks "mutual recognition and peaceful coexistence" between the war-divided rivals. North Korea threatened retaliation last month after accusing South Korea of launching a surveillance drone flight in September and again in January.

The South Korean Government has denied operating any drone...