John Gregg, Peterborough City Council's Executive Director of Children's Services, said: "Yesterday the council shared a message with schools about a potential threat to schools in another part of the country. There was no evidence to suggest that our schools might be at risk, but the message was shared with headteachers to alert them and to remind them of the need for good safeguarding procedures to ensure the safety of pupils.
"We apologise that this has caused parents undue stress and concern, but it is important that we remind schools of good safeguarding procedures."