Public Service Principal Secretary Lilian Mbogo Omollo has stepped down over the recently unearthed National Youth Service (NYS) scandal.

NYS Director-General Richard Ndubai has also stepped down over the alleged loss of about Sh9 billion from the National Youth NYS accounts.

Public Service Cabinet Secretary Margaret Kobia had earlier warned that anyone found culpable will be prosecuted.

"President Uhuru Kenyatta accepted the offer by the two officers to step aside for a period of three months to allow investigating agencies to complete their work," a statement from State House spokesperson Manoah Esipisu read in part.

Already President Kenyatta has accepted the request of the two to step aside to allow for investigations.

Ms Mbogo had claimed that the amount being investigated by the Directorate of Criminal Investigations (DCI) was Sh90 million and not Sh9 billion, which she termed exaggerated.

The DCI had revealed the looting started in 2016 and was authorized and executed in favour of shadowy entities that delivered nothing but still got paid.