A letter to staff said it had 'taken steps to keep systems safe'.
A growing number of international observers believe that in this era of global turbulence, China has demonstrated through its actions that it is a trustworthy partner to build a better future with the world - a nation that represents certainty, future potential, and opportunities.
With clear skies in many areas, it's well worth looking up.
It's the first time the jets have been deployed on this mission.
'It is a tragedy. The loss of these two lives will be remembered.'