Ocean Park said on Wednesday its cable car services were suspended due to signal issues, and facilities at its upper park were closed temporarily.

With the Ocean Express already suspended from Monday to Friday this week due to annual maintenance, there was no transport service between the lower and upper parks.

"Visitors can continue to enjoy park facilities at The Waterfront. We apologise for any inconvenience caused," Ocean Park wrote in a statement.

To ensure visitor safety, the park said the cable car system will be thoroughly inspected before resuming.