SEOUL: South Korea’s military fired warning shots after North Korean soldiers crossed the rivals’ tense border on Tuesday, South Korean officials said.
South Korea’s military said in a statement that about 10 North Korean soldiers returned to the North after South Korea made warning broadcasts and fired warning shots. It said the North Korean soldiers violated the military demarcation line at the eastern section of the border at 5 p.m.
South Korea’s military said it is closely monitoring North Korean activities.
Bloodshed and violent confrontations have occasionally occurred at the Koreas’ heavily fortified border, called the Demilitarized Zone. But when North Korean troops briefly violated the border in June last year and prompted South Korea to fire warning shots, it didn’t escalate into a major source of tensions. South Korean officials assessed that the soldiers didn’t deliberately commit the border intrusion and the site was a wooded area and military demarcation line signs there weren’t clearly visible. South Korea said the North Koreans were carrying construction tools.
The motive for Tuesday’s border crossing by North Korean soldiers wasn’t immediately clear.
The 248-kilometer (155-mile) -long, 4-kilometer (2.5-mile) -wide DMZ is the world’s most heavily armed border. An estimated 2 million mines are peppered inside and near the border, which is also guarded by barbed wire fences, tank traps and combat troops on both sides. It’s a legacy of the 1950-53 Korean War, which ended with an armistice, not a peace treaty.
Animosities between the Koreas are running high now as North Korean leader Kim Jong Un continues to flaunt his military nuclear capabilities and align with Russia over President Vladimir Putin’s war on Ukraine. Kim is also ignoring calls by Seoul and Washington to resume denuclearization negotiations.
Since his Jan. 20 inauguration, US President Donald Trump has said he would reach out to Kim again to revive diplomacy. North Korea has not responded to Trump’s remarks and says US hostilities against it have deepened since Trump’s inauguration.
South Korea, meanwhile, is experiencing a leadership vacuum after the ouster of President Yoon Suk Yeol last week over his ill-fated imposition of martial law.

SEOUL: Leading contenders began to throw their hats in the ring on Tuesday as South Korea officially set June 3 for a snap presidential election triggered by last week’s removal from office of impeached leader Yoon Suk Yeol.
The power vacuum at the top of government has impeded Seoul’s efforts to negotiate with the administration of US President Donald Trump at a time of spiralling US tariffs and slowing growth in Asia’s fourth-largest economy.
Yoon was removed on Friday over his short-lived declaration of martial law in December that plunged the key US ally into crisis, triggering a new election that could reshape its foreign and domestic policy.
“The government intends to designate June 3 as the 21st presidential election day,” Acting President Han Duck-soo told a cabinet meeting, citing factors such as the time political parties need to prepare for the event.
Yoon’s labor minister Kim Moon-soo is among a handful of hopefuls who have signalled their intention to run, resigning his post on Tuesday and saying he would launch his campaign.
While not officially a member of Yoon’s People Power Party at the moment, Kim has been polling better than other conservative contenders.
“I tendered my resignation and decided to run because the people want it, people I know want it, and I feel a sense of responsibility to solve national difficulties,” Kim told reporters.
Economic conditions during a “severe national crisis” are hurting people’s livelihoods, he said.
“I thought that all politicians and people should unite to overcome the crisis and work together to help the country develop further,” Kim said.
Ahn Cheol-soo, a PPP lawmaker who was its first to vote for Yoon’s impeachment, also declared his intention to run on Tuesday, saying he was a “cleaner candidate than anyone else.”
He also vowed to secure new economic growth engines including artificial intelligence, to counter Trump’s trade policies.
Ahn fought the last three presidential elections, winning more than 21 percent of the popular vote in 2017, but dropping out and endorsing other candidates in the other two. He is not polling high enough to be included in most recent surveys.
Kim and Ahn will join a wide open field of conservative candidates trying to overcome their party’s second impeachment in as many presidencies.
Conservative Park Geun-hye was impeached, removed from office, and imprisoned in 2017 over a corruption scandal.
Lee Jae-myung, the populist leader of the liberal Democratic Party who lost to Yoon by a razor-thin margin in 2022, is a clear front-runner, but faces legal challenges of his own.
These include multiple trials for charges such as violating the election law and bribery.
Nevertheless, he is expected to step down as DP leader and declare his candidacy as soon as this week.
A Gallup poll published on Friday showed 34 percent of respondents supported Lee as the next leader, while 9 percent backed Kim, 5 percent opted for former PPP leader Han Dong-hoon, 4 percent chose Daegu mayor Hong Joon-pyo, and 2 percent plumped for Seoul mayor Oh Se-hoon.
Yoon was removed by the Constitutional Court for violating his official duty by issuing a martial law decree on December 3 and mobilizing troops in a bid to halt parliamentary proceedings.
The law requires a new presidential election to be held within 60 days if the position becomes vacant.
Yoon still faces criminal insurrection charges, with arguments in his trial to begin on April 14.
South Korea has faced months of political turmoil since Yoon stunned the country by declaring martial law, triggering his impeachment by parliament and the impeachment of acting leader Han.
Han’s impeachment was later overturned by the Constitutional Court and he will stay in the role of acting president until the election.