Voting in Hong Kong gets under way for crucial election

Polls have opened in Hong Kong for a legislative election that's expected to be the most crucial vote for the specially administered Chinese city since the handover from Britain in 1997.

Sunday's citywide vote is also the first since 2014 pro-democracy street protests rocked the Asian financial hub.

The election is set to test the unity of Hong Kong's pro-democracy camp as a new generation of radical activists that emerged after those protests have joined the race.

They're competing with moderate mainstream pro-democracy parties to challenge formidable pro-Beijing rivals.

At stake is the power to keep the city's pro-Beijing leader and his government in check. The pro-democracy camp currently controls 27 of 70 seats, and must keep at least a third of the seats to retain veto power.