South Korea says it fired warning shots after Russian military planes entered its airspace.
Fighter jets were also scrambled in response.
According to the Defence Ministry in Seoul, it's the first time an aircraft from Moscow has violated the country's territorial sky.
It is planning to summon officials from the Russian Embassy to register formal protests.
Blast kills seven at Chinese-run restaurant in Kabul
An explosion tore through a Chinese-run restaurant in a hotel in a heavily guarded part of Afghanistan's capital on Monday, killing a Chinese national and six Afghans and injuring several others.
Death toll from high-speed train collision in Spain rises to 39, RTVE reports
The death toll from Sunday's collision between a derailing high-speed train and a second oncoming train in southern Spain has risen to 39, with 152 people injured, state broadcaster RTVE reported on Monday, citing police sources.
Dozens missing after massive Karachi mall fire, 21 killed
Pakistani firefighters began pulling bodies from the smouldering remains of a sprawling Karachi shopping mall on Monday where more than 60 people were still missing after a massive fire that killed at least 21.
Chile wildfires leave 19 dead amid extreme heat as scores evacuated
Wildfires in Chile have left at least 19 people dead, authorities said on Monday, as the government carried out mass evacuations and fought nearly two dozen blazes exacerbated by intense heat and high winds.
UK Starmer calls for 'calm discussion' to avert trade war with US over Greenland
British Prime Minister Keir Starmer called on Monday for calm discussion to avert a possible trade war with the United States over Greenland, appealing to President Donald Trump to respect alliances such as NATO rather than undermine them.
