Leo Varadkar, who has served as Taoiseach (the prime minister, chief executive and head of government of Ireland) since June 2017, said he had accepted Fitzgerald's resignation with "deep regret".
READ MORE: Ireland to Stand Firm on Brexit Following Fitzgerald's Resignation
There were fears that an Irish election could have complicated next month's EU meeting, at which the Republic of Ireland's position will influence the assessment of the UK's progress in Brexit talks.
Dr Muiris MacCarthaigh Senior Lecturer in Politics, at Queen's University Belfast spoke to Sputnik about the future of the government ahead of a key EU Summit on Brexit next month.
Sputnik: Where will this leave the Irish government?
Sputnik: Mr Varadkar has said he will take over her duties temporarily, who is likely to replace Frances Fitzgerald?
READ MORE: Brexit 'Chaos in UK Government' Is Alarming Leaders of Republic of Ireland
Sputnik: Could this affect the upcoming Brexit negotiations?