'Game of Thrones' season 6 less related to books?

Actress Gemma Whelan, who plays Yara Greyjoy in popular fantasy TV series "Game of Thrones", says the sixth season will be less related to the books written by George R.R. Martin.

In an interview with the British Comedy Guide, Whelan's asked the if the show is "truly off the books" now that the TV series has outpaced the books, reports aceshowbiz.com.

"Yeah, they've sort of," she responded and added: "Not run out of books really, but they've liaised with George R. R. Martin who writes the books, and gone off on their tangent, with his approval. So that's why people are even more interested in spoilers. It's funny isn't it, there's no other show like it."

Whelan says there are so many prying eyes out there which make it impossible to keep details of the show a secret.

"Even when I said I'm going to Northern Ireland on Wednesday to you just now, I thought 'oh god, maybe I shouldn't say that.' You really watch your back on everything - 'don't say too much.' But at least it's been leaked that I'm going to be in it, so I can talk freely about that," she said.

"Game of Thrones" season 6 is currently in production for a spring 2016 premiere.