China: Soldiers and military vehicles amass across bay from Hong Kong

*NO AUDIO AT SOURCE*
W/S Chinese military and security service vehicles parked near Shenzhen Bay Sports Centre *NO SOUND AT SOURCE*
W/S Chinese military vehicles *NO SOUND AT SOURCE*
M/S Chinese military vehicles *NO SOUND AT SOURCE*
M/S Chinese military vehicles
M/S Chinese military vehicles
M/S Chinese military vehicles
M/S Chinese military vehicles
W/S Chinese military vehicles
M/S Chinese military vehicles
M/S Soldiers performing drills
W/S Soldiers marching
C/U Military vehicles
W/S Soldiers and vehicles
W/S Stadium
W/S Hong Kong in distance
SCRIPT
Chinese military and security service vehicles stationed less than five miles (eight kilometres) from the Hong Kong border in Shenzhen were seen on standby on Saturday.
Soldiers participated in drills and marches across the pitch at the Shenzhen Bay Sports Centre while vehicles lined up on its perimeter.
According to reports, hundreds of military vehicles were first spotted by the satellite WorldView in the area surrounding the sports centre on Monday.
On Thursday, the Chinese ambassador to the UK Liu Xiaoming held a press conference in which he gave an unequivocal warning to the protesters in Hong Kong, saying China would "not sit on its hands and watch" and that it had "enough solutions and enough power [...] to quell any unrest swiftly."
Demonstrators are calling for the total withdrawal of a suspended bill that would allow the extradition of the city's residents to mainland China for trials. They also want Hong Kong's Chief Executive Carrie Lam to resign and the conduct of Hong Kong's police during the protests to be investigated.