What to know

• South Korea says the North has launched an ‌unidentified projectile towards the sea, a ‌day after ​South Korea, Japan and the US concluded military drills.S1
• North Korea fired an unidentified projectile toward its eastern coast Saturday, a day after trilateral U.S.-South Korea-Japan military drills ended.S2
• SEOUL, South Korea — North Korea fired an unidentified projectile toward the Sea of Japan on Saturday, South Korea’s defense ministry said. The South’s Joint Chiefs of Staff said it detected the launch toward the body of water that Koreans call the East Sea bu...S3