11/25/2013 09:04 EST | Updated 01/25/2014 05:59 EST

BlackBerry says 3 more executives are out

BlackBerry's chief operating officer, chief technical officer and chief marketing officer are leaving the company, the Waterloo, Ont.-based smartphone maker said in a release today.

COO Kristian Tear and CMO Frank Boulben are leaving the company, effective immediately, the company said Monday. 

BlackBerry also announced that James Yersh will replace Brian Bidulka as CFO, although the latter will stay with the company in an advisory role.

Yersh has been with BlackBerry since 2008 and was previously the company's comptroller and in charge of compliance issues.

The company also announced that long-serving board member Roger Martin, dean of the University of Toronto's business school, has stepped down.

The departures are the first since John Chen was named chair and interim CEO earlier this month.

More to come