Kuala Lampur, April 8 --  

SEOUL, April 8 - South Korea's military said today that North Korea fired an "unidentified projectile" from its capital area the previous day.

"The military detected an unidentified projectile launched from the Pyongyang area on Tuesday," the military said in a statement without giving further details.

"South Korean and US intelligence authorities are analysing detailed specifications," it added.

The launch follows Seoul's expression of regret on Monday over civilian drone incursions into the North in January, with President Lee Jae Myung calling it "irresponsible" and noting that government officials had been involved in the operation.

Following his comments, the powerful sister of North Korean leader...