Two more senior executives at private equity firm Abraaj Group have resigned in recent days, according to people familiar with the matter, piling new pressure on the embattled former star of Dubai's financial center.

The departures of Bisher Barazi, the chief financial officer of Abraaj's private equity unit, and Matthew McGuire, the unit's chief operating officer, come just months after they were appointed to their respective roles as part of a wider reorganisation that saw the firm's founder and CEO Arif Naqvi step back from the day-to-day running of the private equity business.