Senior officers at the council which employed paedophile headteacher Neil Foden are "absent from work", BBC News has been told.
An email sent to Gwynedd councillors by the authority's chief executive stated there were arrangements in place to lead its children and family support department while the head and deputy head are absent.
Foden, 66, was imprisoned for 17 years in July last year, for sexually abusing young girls over a four-year period.
He was head of one Gwynedd school and strategic head of another when he was arrested, and was later convicted of 19 charges.
The charges included 12 counts of sexual activity with a child and two counts of sexual activity with a child while he was in a position of trust.
In the email from Chief Executive Dafydd Gibbard, seen by BBC-produced Newyddion S4C, all 69 Gwynedd councillors were told it was "unlikely we will be able to return to our normal arrangements for a while".
Both absent senior officers were named in the letter, along with their titles and information about the staff stepping up into the roles.
However, it does not state why they are not in their posts at present.
