Turnout for Sunday's Election Committee Subsector By-elections topped 97 percent.

The government said 3,534 out of 3,631 registered voters cast their ballots in the polls that closed at 6pm, for a turnout of 97.33 percent.

The ballot boxes were then delivered to the central counting station at the Convention and Exhibition Centre for counting.

Chairman of the Electoral Affairs Commission, David Lok, said authorities aim to complete vote-counting before the storm signal No 8 takes effect.

The Observatory said it will issue the No 8 signal at 9.20pm on Sunday.