Three of the five pilot whales that were released into False Bay yesterday have been found beached on Long Beach in Simonstown.
NSRI spokesperson, Craig Lambinon, says the whales were euthanised when it was discovered that they were in poor and deteriorating health.
He says a total of 20 whales had beached over the weekend.
Veterinary Surgeons, the Department of Environmental Affairs Oceans and Coasts, the SPCA and the City of Cape Town Disaster Risk Management responded and are confident that these 3 whales are 3 of the 5 that were released into False Bay late on Sunday afternoon.
The False Bay coastline is being monitored by the authorities to determine if the remaining two whales may also beach.