He will stay in office until Friday.
Suciu was appointed Government spokesman by Prime Minister Mihai Razvan Ungureanu on February 20. He previously held the position of editor-in-chief of business TV channel the Money Channel.
Last week, the central-right Government led by Ungureanu was overthrown in a no-confidence vote in Parliament. Social democrat Victor Ponta was designated prime minister on the same day by President Traian Basescu.