South Korea's Defense Ministry says North Korea has test-fired five short-range missiles into the sea, ABC news reported.
The ministry said the missiles flew about 200 kilometers (125 miles) before landing in waters off North Korea's east coast on Sunday.
North Korea routinely tests missiles and rockets, but the latest launches come amid dimming prospects for the resumption of high-level talks between the rival Koreas, who remain at odds over terms for a possible meeting.
South Korean defense officials said Sunday's launches were the North's second missile firings this year.
The North said Saturday that it had test-fired a new anti-ship cruise missile, with leader Kim Jong Un observing the firing.
The two Koreas remain divided along a heavily armed border since their war in the 1950s ended with only an armistice.