Two white rhinos were killed for their horns by poachers at a farm outside Ficksburg in the Free State, the farm owner said on Thursday.

The carcasses of the two rhinos were discovered with their horns cut off outside the Kenyana Game Lodge home on Wednesday, said Anita Hughes.

They were about eight to 10-years-old.

"No one saw anything but we found the exit through which they went out and eventually found them killed. Police are handling the matter," said Hughes.

She said these were the last two remaining rhinos in the game park. Two others were sold years ago.

"We sold the two older ones and kept the young ones but now they are gone" said Hughes, adding that she was" really upset" about the incident.

Police could not be immediately reached for comment.