Mr Obama said the test was a "highly provocative act", and called for "swift" and "credible" international action in response.

BBC: North Korea carries out biggest nuclear test

Mr Stringer also said he found Prime Minister David Cameron's decision to call MPs back from an Easter break to debate the former PM's legacy "highly provocative".

BBC: Manchester

Republicans found the documents highly provocative.

CNN: Who Is Marsha Scott?

"This is just the first study which was focused on the idea that men of a certain age view sex as a highly desirable goal, and if you present them with a provocative woman, then that will tend to prime goal-related responses, " she told CNN.

CNN: Men see bikini-clad women as objects, psychologists say