Two Russian fighter jets violated Japanese airspace on Thursday with Tokyo scrambling jets in response, the defence ministry said.

A Chinese military frigate locked its weapon-targeting radar on a Japanese navy vessel on at least one occasion, Japan’s defence minister said Tuesday, in an apparent upping of the stakes in a bitter territorial row.

The New York Times today said Chinese hackers have carried out sustained attacks on its computer systems, breaking in and stealing the passwords of reporters, including in India, after the paper’s expose of vast wealth amassed by Chinese premier Wen Jiabao’s family.

China has approved construction of three more dams on Brahmaputra river in Tibet in addition to the one being built, and much to the disquiet of India, it has not been informed about the plans so far.

US regulators said today they asked Boeing Co to provide a full operating history of lithium-ion batteries used in its grounded 787 Dreamliners after Japan’s All Nippon Airways revealed it had repeatedly replaced the batteries even before overheating problems surfaced.

Insurgents killed a total of 23 policemen across Afghanistan within 24 hours, officials said today, reflecting the increasing police role in the war before the withdrawal of NATO troops.

Japan today launched two satellites to strengthen its surveillance capabilities, including keeping a closer eye on North Korea which has vowed to stage another nuclear test.

India’s challenge ended in the men’s doubles event of the Australian Open with the defeat of Mahesh Bhupathi and Daniel Nestor even as Sania Mirza and Rohan Bopanna progressed to the mixed doubles quarter-finals with their respective partners, here today.

China today congratulated US senator John Kerry over his appointment as the new secretary of state, saying the two countries should now explore “new type” ties, as official media hoped Barack Obama’s new appointee will be less aggressive compared to Hillary Clinton.

Japan today said it will strengthen the surveillance power of its air force, a day after the first-ever intrusion into the country’s airspace by a Chinese government aircraft.