WELLINGTON, New Zealand — An Australian television interviewer was broadly bashed on Monday as “creepy” and sexist after asking New Zealand’s leader, Jacinda Ardern, about her child’s conception and calling her the most attractive prime minister he had met.

The report by the veteran journalist Charles Wooley on Ms. Ardern — who took office in October and announced her pregnancy in January — was shown Sunday on “60 Minutes” in Australia.

“My crew and I were completely smitten, I must say. I can’t say it’s an unbiased report,” Mr. Wooley said in television previews ahead of the interview’s airing.