Pamela Anderson has called on Scott Morrison to defend WikiLeaks founder Julian Assange and help bring him back to Australia.

The former Baywatch star said the prime minister should be proud of the work done by Australian-born Assange, who has been holed up in the Ecuadorian embassy in London for six years.

Anderson denied rumours she was anything more than a close friend of Assange, but told the Nine Network's 60 Minutes that their relationship was a "romantic struggle".

Anderson, who struck up a friendship with Assange over their shared interest in activism, believes the Australian government should be doing more to help him.