Hong Kong protest: Could Beijing send in troops?

In Hong Kong, anti-government protests show no sign of letting up.

Tens of thousands of people took to the streets for a seventh weekend in a row.

The protests continued after nightfall, with scuffles breaking out when some protesters defied police orders and marched beyond the official finish point.

The rallies were initially sparked by a controversial extradition bill.

Though the bill has now been suspended, the protesters are worried about an erosion of freedoms under Chinese rule and under pro-Beijing chief executive Carrie Lam and want free elections.

Could Beijing send troops to Hong Kong to quell the protests?