The resignation of Toyota Motor Corporation’s first female executive, who lasted just 90 days in the job, is a blow to Toyota’s drive to make management ranks more international and accepting of female executives.

Julie Hamp, a 55-year-old American who was Toyota’s chief communications officer and one of the company’s highest-ranking non-Japanese executives, gave notice of her resignation Tuesday over her drug-related arrest last month.

Toyota announced Wednesday that it accepted the resignation, citing the concerns and inconvenience raised by her June 18 arrest for allegedly importing prescription painkillers that require prior permission before they can be brought into Japan.

Chris Rowley, professor of human resource management at Cass Business School in London and Griffith University in Australia was quoted about the move in an article by Craig Trudell and Yuki Hagiwara for the Japan Times.

Read the full “Loss of Toyota’s first female executive is blow to Japan’s diversity drive” article online at the Japan Times.