South Korean military officials say North Korea has flown several drones across their mutual border.
The "unmanned aerial vehicles" violated South Korean airspace in the border areas around Gyeonggi province, said the country's joint chiefs of staff.
One of the drones flew as far as the capital Seoul, according to reports.
The South Korean military said it had fired warning shots before sending up jets and helicopters to shoot them down.
One of the warplanes, a KA-1 light attack aircraft, later crashed, but its two pilots escaped unhurt.
The plane fell to the ground in Hoengseong County, east of Seoul, soon after take-off from an air base in the nearby city of Wonju, according to the air force, quoted by Yonhap news agency.
South Korea also suspended planes taking off and landing at its Incheon and Gimpo airports for about an hour.
The last time a North Korean drone crossed the border was five years ago in June 2017.
Latest Stories
-
Togbe Afede XIV livid about state of Ghana’s economy
3 mins -
Undocumented migrants hope Trump mass deportations only ‘for criminals’
27 mins -
Final phase for mass rape trial that has horrified France
41 mins -
Trump, Musk and new cabinet nominees celebrate at UFC
53 mins -
‘Anointed by God’: The Christians who see Trump as their saviour
1 hour -
GPL 2024/25: Young Apostles hand Samartex first home defeat since March
3 hours -
Unconventional Trump brings openings and perils for Africa
4 hours -
Iseguri Initiative fights teenage pregnancy and early child marriage
4 hours -
‘Dreams quashed’: Foreign students and universities fear Australia’s visa cap
5 hours -
G20 talks in Rio reach breakthrough on climate finance, sources say
5 hours -
2024/25 Ghana League: Bechem United shock Chelsea in Berekum
7 hours -
GPL 2024/25: Nations FC beat Asante Kotoko to go top
7 hours -
GPL 2024/2025: Gold Stars drop to 2nd after 2-0 defeat to Medeama
7 hours -
#GPL 2024/25: Hearts pip Karela in Tamale to move into top 4
7 hours -
Feedback from Klopp, others more valuable than just anybody – Otto Addo to critics
7 hours