Disease didn't kill them, but cars did.

Days after the first Tasmanian devils immunised against a deadly facial cancer were released into the wild, two were killed on the roads.

An immunised Tasmanian devil is released into the wild. Credit:Tasmanian Government

The animals, with microchips, were released only last Friday. They were found dead on roads bordering Narawntapu​ National Park in northern Tasmania on Monday and Tuesday.

"Sadly, we were able to confirm the devils as two of the 20 released into Narawntapu on Friday night," Save the Tasmanian Devil program manager David Pemberton said.