By Juliana Liu
Hong Kong correspondent, BBC News
Occupy Central co-organisers announce the number of votes twenty-six hours after their unofficial referendum began in Hong Kong on 21 June, 2014
Organisers from the Occupy Central movement said the number of votes cast exceeded their expectations
Despite what organisers called the biggest cyber attack in Hong Kong’s history, hundreds of thousands of people have been able to voice their opinion in an unofficial pro-democracy referendum that started on Friday.
As of 21:00 local time (14:00GMT) on Sunday, 689,000 ballots had been cast in the city-wide vote organised by the Occupy Central movement.
The high turnout has far exceeded expectations. Organisers said they would have been happy with at least 100,000 votes.
The actual voting, both online and in person at 15 polling stations scattered across Hong Kong, was overseen by Robert Chung, an experienced pollster from the University of Hong Kong.
He told me the system had originally been designed to handle a maximum of 800,000 votes.