Emergency services are at the scene of an incident in Monkstown in Cork.
A passer-by is reported to have seen a car going into the water just before half three this afternoon.
The man entered the water and pulled a woman, believed to be in her 30s, from the car.
She was brought to Cork University Hospital, where it's understood she is receiving treatment for minor injuries.
Naval divers, the Crosshaven lifeboat and Cork City Fire Service are all at the scene and it is not clear at this stage if there is anyone else missing.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? firstname.lastname@example.org