Advocates: 22 asylum seeker kids on Nauru

There are 22 asylum seeker children still on Nauru, refugee advocates say.

Two families with a total of five children were evacuated from the Pacific island in the past few days, the Asylum Seeker Resource Centre told AAP on Thursday.

The federal government has confirmed all asylum seeker children will leave Nauru by the end of this year but they will not be permanently resettled in Australia, even if found to be refugees.