SEOUL, South Korea — Amid rising military threats from North Korea, South Korea conducted its own recent missile test, successfully launching a newly developed ballistic missile capable of striking most of North Korea, the South Korean Ministry of National Defense announced on Friday.

The new missile, with a range of 310 miles and able to carry a warhead of up to 2,200 pounds, was launched on March 23 from a test site in Taean, a coastal town southwest of Seoul.

The test came a day after North Korea raised tensions by test-firing 30 short-range rockets off its east coast on March 22. Kim Min-seok, a spokesman for the South Korean Defense Ministry, declined to say when South Korea planned to deploy the new missile.

South Korea has been developing new missiles since Washington and Seoul revised their defense treaty in 2012 to allow it to extend the range of its ballistic missiles from 186 to nearly 500 miles to cope better with North Korea’s increasingly sophisticated missile and nuclear programs.