The government has warned that there is a risk of flooding in some parts of the New Territories, saying it's been informed by Shenzhen authorities that water would be discharged from the Shenzhen reservoir from midnight on Friday.

"There may be a risk of flooding in some parts of the New Territories. Various government departments, including District Office (North), Drainage Services, Police, Fire Services, Water Supplies and Social Welfare have been informed in order that they can take any necessary measures," authorities said in a press release.

"The District Office (North) is making arrangements to inform local residents of the appropriate actions to take."