The government plans to beef up the Air Self-Defense Force's surveillance ability, Chief Cabinet Secretary Osamu Fujimura said Friday, a day after a Chinese airplane intruded into Japanese airspace for the first time on record.

"We will take all possible steps for the defense of our airspace," Fujimura told a news conference.

The Defense Ministry is considering "more effective operations" of the ASDF's airborne warning and control systems, as well as its E-2C early warning aircraft.