HKSAR gov't urges attention to students' safety Wi-Fi to cover whole high-speed rail network Physicists invite aid from China Inhumane deeds of HK rioters HK lawmaker: Rioters plan to intimidate voters Hong Kong to suspend classes until Sunday Second C919 plane tests its mettle in maiden flight More traffic disruptions after chaotic night in HK AI solutions launched for smart decision-making 2nd prototype of C919 jetliner completes 1st test flight 3D printed Buddhist statues displayed in east China Aftermath of MTR stations across HK after radicals' wrecking spree Who is ruining Hong Kong? Second C919 jet makes maiden test flight HK District Council candidates targeted New tech to read human emotion via camera HK rioters escalate violence when faced with different opinions Space engineers help make life easier for all HK fire victim still in critical condition