Early predictions had Mayor Oh losing the race, but now with almost all the votes counted he has been declared the winner now:

Seoul Mayor Oh Se-hoon of the main opposition People Power Party thanks supporters on June 4, 2026, after being declared winner in the Seoul mayoral race as part of local elections held the previous day. (Yonhap)

The ruling Democratic Party (DP) clinched a resounding victory in the local elections and parliamentary by-elections, winning the key mayoralty in the traditional conservative stronghold of Busan, while the main opposition party retained the Seoul mayoral seat. 

The DP won 12 out of the 16 key mayoral and gubernatorial seats up for grabs, including in Busan where Jeon Jae-soo was elected mayor, while the main opposition People Power Party (PPP) took four seats, including Seoul, where incumbent Mayor Oh Se-hoon was elected to a fifth term, according to the final vote count.

Of the total 14 seats contested in the parliamentary by-elections, which were held concurrently with the local elections, the DP clinched nine, followed by the PPP with four seats, while the remaining seat was won by an independent.

Yonhap

You can read more at the link.

Considering that they made multiple trips to South Korea to film U.S. and Korean airbases it seems to me that Chinese intelligence was hoping to use high school student in an effort to avoid detection. It worked until a local resident finally noticed them and called police:

Two Chinese nationals were sentenced to prison Thursday for illegally filming fighter jets at several South Korean and U.S. military facilities and attempting to intercept traffic control communications.

The Suwon District Court sentenced an 18-year-old Chinese high school student to an indeterminate prison term of 1 1/2 to two years and a 20-year-old Chinese man to two years in prison, both for general treason. An indeterminate sentence is applied to minors under the juvenile law.

It is the first time in South Korea that a foreigner has been found guilty of general treason under the Criminal Act.

The court also ordered the confiscation of their cameras and other items used in the crime.

The two were arrested and indicted for taking hundreds of detailed photos of fighter jets taking off and landing at major air bases nationwide during multiple visits to South Korea between the second half of 2024 and March last year, when both were high school students.

They were found to have visited four South Korean and U.S. military facilities in Suwon, Osan, Pyeongtaek and Cheongju, as well as three major international airports — Incheon, Gimpo and Jeju. They were caught by police in March last year after a resident reported them for illegally filming fighter jets taking off and landing at Suwon Air Base.

Korea Times

You can read more at the link.

It is kind of surprising that South Korea had a female President before ever having a female governor:

Choo Mi-ae, a ruling Democratic Party of Korea (DPK) candidate who has repeatedly shattered gender barriers throughout her career, broke new ground again, as she was projected to secure the governorship in Gyeonggi Province in the local elections, Wednesday.

If her victory is confirmed, she will be the first woman to lead a provincial or metropolitan government. 

Choo garnered 60.4 percent of votes against the main opposition People Power Party’s (PPP) Yang Hyang-ja at 34.1 percent in a joint exit poll conducted by broadcasters KBS, MBC and SBS.

Korea Times

You can read more at the link.

Have conservatives in South Korea ever been this weak politically before? The stain of the Yoon presidency continues to impact conservative candidates to the benefit of the Democratic Party who will likely win 13 of 16 major races to include ousting the PPP mayor of Seoul:

This composite photo, taken June 3, 2026, shows lawmakers and officials of the ruling Democratic Party (top) and the main opposition People Power Party watching exit poll results for the local elections in Seoul. (Pool photo) (Yonhap)

The ruling Democratic Party (DP) was poised for a sweeping victory in the local elections in a crushing defeat for the main opposition People Power Party (PPP), interim vote counting showed Thursday, a result expected to give President Lee Jae Myung a stronger mandate in his second year in office.

The DP was projected to win as many as 13 of the 16 metropolitan mayoral and gubernatorial posts at stake, while the PPP was headed to secure two key races, according to early ballot counts by the National Election Commission (NEC).

Eleven out of the 16 key races were called or close to being called as of 3 a.m., with the ruling party winning 10 of the 11 races. The DP was also ahead in three of the rest of the five races where it was still too close to call.

Wednesday’s elections were held exactly one year after the Lee administration took office on June 4. 

A clear victory for the ruling party would likely solidify the government’s mandate to push forward with its reform measures, while dealing a blow to the embattled PPP as it struggles to rebuild conservative support following former President Yoon Suk Yeol’s ouster.

It would also mark a sharp turnaround in voter sentiment from four years earlier, when the then ruling PPP had claimed 12 out of 17 major gubernatorial and mayoral positions in the last local elections. The 2022 local elections were held a month after Yoon took office.

Yonhap

You can read more at the link.

Monitoring of early-voting ballot boxes

An official at the National Election Commission in Gwacheon, south of Seoul, looks at monitors showing CCTV screens installed at locations storing ballot boxes from early voting on May 31, 2026, as the country is set to hold nationwide regional elections and parliamentary by-elections on June 3. (Yonhap)

In Korea it can be illegal to operate a porn site as these people have just found out:

Korean police arrested 15 people linked to an online pornography site with more than 6,000 members, accusing its operators and users of distributing hundreds of sexually explicit photos and videos, police said Friday.

The Seoul Metropolitan Police Agency’s cyber investigation unit said it booked eight operators of the site, called Honors Club, on charges of distributing obscene materials in violation of the Information and Communications Network Act. Seven site members were also arrested on the same charge. (……)

The operators are accused of running the site from January 2022 through April 2026 and uploading or allowing the distribution of about 700 explicit photos and videos, including footage of group sexual activity among members, according to police.

The site presented itself as a community for married couples and partners seeking open relationships. However, police said its operators used the platform to circulate sexually explicit content and recruit members through multiple online channels, including a Daum cafe, Telegram channels and chat rooms, and an account on X.

The site had 6,325 members, while related online groups drew 2,361 members on Daum cafe, 736 users on a Telegram channel, 944 participants in a Telegram chat room and 6,214 followers on X, police said.

Korea Herald

You can read more at the link.

This professor came to Korea to monitor the upcoming elections and has now put himself at risk of being jailed:

Police on Monday applied to the Ministry of Justice for an exit ban on Morse Tan, a Korean American professor and former U.S. ambassador at large for global criminal justice under the first Trump administration, amid an ongoing investigation into defamation charges tied to false claims he made about President Lee Jae Myung.

Tan, also known by his Korean name Dan Hyun-myung, returned to Korea on Thursday, citing intentions to personally monitor and verify the June 3 local elections for irregularities.

Officers traveled to Incheon International Airport on the day of his arrival, formally notifying him to appear for questioning the following day. Tan declined to comply, submitting a written statement explaining his rejection of the summons and filing a separate request to have the assigned investigating officers replaced.

Korea Herald

You can read more at the link.