Report: North Korea fires projectile into sea

A man watches a TV news program showing a file footage of North Korean leader Kim Jong Un at Seoul Railway Station in Seoul, South Korea, Friday, April 1, 2016. North Korea fired a short-range missile into the sea on Friday, Seoul officials said, hours after the U.S., South Korean and Japanese leaders warned the North it will face tougher sanctions if it continues with provocations. The Korean letters at bottom read: "Analysis, the surface-to-air missile." (AP Photo/Lee Jin-man) (The Associated Press)

U.S. Army's armored vehicle moves during the annual exercise in Paju, near the border with North Korea, Friday, April 1, 2016. North Korea fired a short-range missile into the sea on Friday, Seoul officials said, hours after the U.S., South Korean and Japanese leaders pledged to work closer together to prevent North Korea from advancing its nuclear and missile programs. (AP Photo/Ahn Young-joon) (The Associated Press)

U.S. Army soldiers conduct the annual exercise in Paju, near the border with North Korea, Friday, April 1, 2016. North Korea fired a short-range missile into the sea on Friday, Seoul officials said, hours after the U.S., South Korean and Japanese leaders pledged to work closer together to prevent North Korea from advancing its nuclear and missile programs.(AP Photo/Ahn Young-joon) (The Associated Press)