BEIJING — China’s Air Force sent fighter jets to patrol over the China-Myanmar border after four Chinese were killed by a bomb dropped by a Myanmar warplane in southwestern Yunnan province, a military spokesman said on March 14.

The People’s Liberation Army Air Force dispatched several batches of fighter jets on March 13 to “track, monitor, warn and chase away” Myanmar military planes flying close to the Chinese border, said Air Force spokesman Shen Jinke.

The Air Force have been always on high alert, kept close watch on the air situation and strengthened surveillance over the China-Myanmar border recently, said Colonel Shen.

He said the Air Force will take measures to enhance response over the China-Myanmar border in order to “safeguard sovereignty of the national territorial air space”.