South Korea's military said it scrambled fighter jets after detecting about 180 North Korean military flights north of the two countries' border over four hours on Friday.
The North Korean aircraft flew north of the so-called tactical action line, north of the Military Demarcation Line between the two Koreas, South Korea's military said in a statement. The virtual line is used as a basis for South Korean air defence operations, a South Korean official said.
South Korea scrambled 80 aircraft, including, F-35A stealth fighters, in response. About 240 aircraft participating in the Vigilant Storm exercises with the United States continued the drills, the military said.
A flight of 10 North Korean warplanes made similar manoeuvres last month, prompting South Korea to scramble jets.
The manoeuvres came after North Korea fired more than 80 rounds of artillery into the sea overnight, and launched multiple missiles into the sea on Thursday, including a possible failed intercontinental ballistic missile (ICBM).
The launches prompted the United States and South Korea to extend air drills that have angered Pyongyang.
Israel bombarded northern Gaza overnight in some of the heaviest shelling in weeks, causing panic amongst residents and flattening neighbourhoods in an area from which the Israeli army had previously down its troops, residents said on Tuesday.
Russia launched a drone attack on Ukraine that injured seven people in the Black Sea port of Odesa, two of them children, and also targeted Kyiv, the capital, Ukraine's military officials said early on Tuesday.
A Delhi court on Tuesday extended the pre-trial detention of Indian opposition leader Arvind Kejriwal until May 7 in a corruption case, the legal news website Live Law reported.
Taiwan's quake-hit eastern county of Hualien was rattled by more than 200 aftershocks late on Monday and early on Tuesday, but only minor damage was reported and no casualties and major chipmaker TSMC said it saw no impact on operations.
Two Malaysian navy helicopters collided in mid-air during a rehearsal for a naval parade on Tuesday, killing all 10 crew members aboard, the navy said in a statement.