Live blog: Hong Kong's night of unrest

Tens of thousands of democracy protesters gathered on the streets of Hong Kong's central business district on Monday, as the fourth night of unrest got underway.

It comes after dramatic scenes of armed police firing tear gas and wielding batons unfolded over the weekend. This is the worst unrest since China took back control of the former British colony in 1997 as students and protesters denounced Beijing's decision to rule out fully democratic elections in 2017.

Follow the latest developments below (for mobile devices, click here):