About 500 patients have been affected after a blood clinic in Halifax had to shut down due to a “water issue”.

In an email to Acadia News, Nova Scotia Health says it was a wastewater blockage at the Bayers Road location that staff became aware of on Thursday.

“Despite best efforts, plumbers have not been immediately able to clear the blockage. This means more robust equipment was required Monday, March 16,” said the email.

There was no damage to the building or any equipment.

Patients were asked to rebook or go to another site.

Nova Scotia Health says they will have another update later Monday.