This is reported by Censor.NET citing the SBU Twitter page.
"The president of Ukraine presented Head of the SBU Vasyl Hrytsak to the executive staff of the agency," the statement reads.
Earlier, the Verkhovna Rada supported the president's appointment of Vasyl Hrytsak to the post of the Security Service chairman. Decree #2204a was supported by 340 deputies.
On June 18, the Verkhovna Rada endorsed the dismissal of Valentyn Nalyvaichenko as chairman of the SBU. Later Poroshenko submitted the candidacy of Acting Chairman of the SBU Vasyl Hrytsak who previously served as first deputy chairman of the SBU.