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.
Bahrain, Kuwait, Jordan face renewed Iranian attacks after US hits Iran's south
US forces bombed targets in southern Iran overnight after President Donald Trump said Tehran would pay dearly for the deaths of American soldiers, while Iran targeted US sites in Bahrain, Kuwait and Jordan and a tanker was hit in the Strait of Hormuz.
Lebanon's Aoun to meet Trump at White House
Lebanese President Joseph Aoun will meet US President Donald Trump at the White House on Tuesday to present a plan on how to disarm Hezbollah and secure Israel's withdrawal from Lebanon.
Israeli airstrike kills family of six in Gaza, medics say
An Israeli airstrike on Tuesday killed a father, his wife and their four children in Gaza City, while setting their home ablaze, health officials said.
India youth group says will not march again because police will 'hurt youth'
India's youth-led "cockroach" movement said on Tuesday it would continue its protest but will not march again, a day after scores of supporters were injured in clashes with police who tried to stop their march to parliament.
UK's Burnham targets lower energy bills in first move as PM
British Prime Minister Andy Burnham said on Tuesday he would cut taxes on electricity bills in his first attempt to ease a lengthy cost-of-living crisis that has angered the public and helped stoke political instability.
