The United Nations’ human rights chief told diplomats her trip to Xinjiang this week wouldn’t be an "investigation,” in an apparent attempt to manage expectations of her landmark visit to China.

Michelle Bachelet said her trip aimed to promote, protect and respect human rights, according two people who attended the Monday video call with some 100 participants, who were mostly Beijing-based diplomats. The people asked not to be identified discussing the sensitive issue.

Bachelet said setting high expectations would lead to disappointment, according to the people, addressing concerns raised mainly by Western diplomats on the call over whether she’d be granted unfettered access to Xinjiang.