Two teenage boys have saved a woman's life after her car took an icy plunge into a Christchurch Lake this morning.
The car entered a lake in the Westlake Reserve about 8.15am.
Fire and Emergency New Zealand shift manager Ian Littlejohn said two teenage boys swam into the water to help the woman involved.
When FENZ arrived the car was already fully submerged, he said.
A firefighter on the scene had described the boys' efforts as "sterling" and had a simple request for the FENZ team, he said.