North Korea fired multiple unidentified cruise missiles on Tuesday into the sea off its west coast, South Korea's military said, the third time Pyongyang has tested cruise missiles in less than a week.
The missiles were launched at around 7:00 am (2200 GMT on Monday), Joint Chiefs of Staff said in a statement.
South Korean and US intelligence authorities were closely monitoring the situation and analysing the details of the launch, it said.
The launch comes amid a rise in tension on the Korean peninsula and follows a barrage of cruise missiles fired by Pyongyang off its east coast on Sunday.
Sunday's launch was a test of the new submarine-launched cruise missiles (SLCM) dubbed "Pulhwasal-3-31" and leader Kim Jong Un supervised the test, North Korean state media KCNA reported on Monday.
Last week's missiles were also Pulhwasal-3-31, KCNA said, adding that they were "strategic", which typically refers to nuclear-capable weapons.
South Korea's JCS said last week it believes the firing of "Pulhwasal-3-31" was to test upgrades of existing missiles' capabilities.
A controversial refereeing decision led to violence and a deadly crush during a soccer match in southeast Guinea, resulting in at least 56 deaths, according to a provisional toll released by the government on Monday.
Iranian-backed groups entered Syria overnight from Iraq and were heading to northern Syria to beef up Syrian army forces battling a coalition of rebels, according to two Syrian army sources.
Hamas leaders held talks with Egyptian security officials on Sunday in a fresh push for a ceasefire in the Gaza war, two Hamas sources said, and Israeli Prime Minister Benjamin Netanyahu was set to hold security talks on the matter, two Israeli officials said.
The UN agency for Palestinian refugees (UNRWA) has paused its delivery of aid through the Kerem Shalom crossing into Gaza, citing lack of safety as looting by armed criminal gangs continued.