Tasmanian police are investigating after video showing an Aboriginal bark hut being burned to the ground was posted on social media.

For the last five years the bark hut has stood outside the South East Tasmanian Aboriginal Corporation in Cygnet.

But a video posted on Snapchat over the long weekend shows the structure in flames, with a caption saying ‘SETAC needs to be attacked by the sea.’

SETAC chair Rodney Dillon says he believes the attack is a personal one against him in retaliation to an Aboriginal fishing rights deal signed with the state government.

Mr Dillon says they plan to rebuild the bark hut as quickly as possible.