Darren Huston resigned as CEO of , effectiveimmediately.

Huston resigned following an investigation overseen byindependent members of the board over the facts and circumstances surrounding apersonal relationship that Huston had with an employee of Priceline who was notunder his direct supervision. The investigation determined that Huston hadacted contrary to the company's code of conduct and had engaged in activitiesinconsistent with the board's expectations for executive conduct, which Hustonacknowledged and regretted, the company said April 28.

As a result, Priceline Group appointed former CEO andcurrent Chairman Jeffery Boyd as interim chief executive and president of thecompany, while an independent committee of the board led by James Guyette, leadindependent director, will work to find a permanent replacement.

Additionally, Priceline tapped current Booking.com Presidentand COO Gillian Tans to be CEO of Booking.com, replacing Huston who also servedthe business unit as chief executive.