A THREATENING email has been sent to a "large number" of schools across the North – following a similar incident in October.
The Education Authority said the "message has similarities with a bogus threat sent last month" which was treated as a hoax by the Police Service of Northern Ireland (PSNI).
"At this stage, we have not been made aware of any evidence of any credible threat to schools," they said.
The Department of Education advised schools to remain open "unless otherwise advised by the PSNI".
St Dominic's Grammar School in West Belfast is one of a number of schools that received the email.
In a letter to parents, Principal Orla O’Neill said: "St Dominic’s Grammar School is one of a number of schools nationwide that have received a further threatening email this morning. This is similar to the one received on 19th October.
"Immediately upon receiving the communication, I contacted the PSNI and the Education Authority Critical Incident Team.
"We have followed their advice and have conducted our own checks throughout the premises and have found nothing suspicious. Therefore, the school day is continuing as normal and there is no cause for alarm.
"I fully appreciate that receiving this information may cause concern. Please be assured that the safety and well-being of our pupils and staff remains our highest priority, and we will continue to follow the advice and guidance provided by the PSNI and Education Authority.
"Thank you for your understanding and continued support."
West Belfast MLA Pat Sheehan condemned those behind the latest threat.
"These latest reports of sinister threats made to schools this morning are despicable," said Sinn Féin's education spokesperson. "Again they have caused significant anxiety and distress for parents, children and school staff.
“It is completely unacceptable that school communities have once again been left facing this level of fear, uncertainty and disruption.
“It is vital the PSNI and the Education Authority work closely with affected schools to ensure clear and timely information is provided, and that reassurance and support are available to concerned families, pupils and staff.
“I would urge parents, pupils and the wider community to follow the guidance issued by their schools and the relevant authorities, and to avoid sharing unverified information which could cause further unnecessary alarm.”
