North Korea launches 2 more ballistic missiles; one lands in Sea of Japan

North Korea launched two more ballistic missiles Thursday morning, one of which landed in the Sea of Japan, U.S. officials confirmed to CBS News. The second missile landed in North Korea, the officials said.

It's unclear if Thursday's launch was in response to the announcement Wednesday from South Korea's Joint Chiefs of Staff that the U.S. aircraft carrier USS Ronald Reagan would return to waters east of South Korea. The carrier was part of drills last week with South Korea and Japan.

The office of Japanese Prime Minister Fumio Kishida also tweeted about the missile launch, but did not immediately provide details.