FILE PHOTO: Tidjane Thiam, CEO, Credit Suisse Group AG, speaks at the Milken Institute 21st Global Conference in Beverly Hills, California, U.S., May 1, 2018. REUTERS/Mike Blake

ZURICH (Reuters) - The chief executive of Swiss bank Credit Suisse CSGN.S will not attend a Saudi investment conference this month, a source familiar with the situation told Reuters on Tuesday.

Tidjane Thiam had been scheduled to go to the Future Investment Initiative conference in Riyadh, but now joins several other top executives who have bowed out amidst uproar over the disappearance of Saudi journalist Jamal Khashoggi.