A number of threatening messages sent to schools across the UK on Wednesday are being treated as hoaxes, police have said.
Threatening emails were received at schools in Scotland and Northern Ireland.
After the messages were assessed, officers confirmed they are being treated as hoaxes.
The latest threat follows a hoax bomb threat sent to a number of schools in Northern Ireland and Scotland last month.
A Police Scotland spokesperson said: “We understand how distressing messages of this nature can be for pupils, parents, carers and school staff, and the concern they can understandably cause.
“Our advice is that there is no requirement to evacuate schools or keep children away from education based solely on the content of the emails.
“They have been sent widely to distribution lists across the UK and Northern Ireland, and our assessment remains that they do not represent a credible threat.
“Police Scotland’s cyber and fraud unit is carrying out extensive inquiries to establish the source of the messages, and officers continue to liaise with law enforcement partners across the UK and internationally.”
A number of Scottish councils have said they are working with police but that schools will not be evacuated.
In Northern Ireland, the Department of Education advised schools to remain open “unless otherwise advised by the PSNI”.
The email has been sent to more than 300 schools in Northern Ireland and police said the email originated from outside the country.
Police in the Republic of Ireland also said they were aware of a “generic communication” that has been sent to a number of educational establishments.
Police Service of Northern Ireland (PSNI) Assistant Chief Constable Anthony McNally said: “We take incidents of this nature very seriously and we understand the concern in the community, school communities and for students and parents.
“Our inquiries are ongoing, however, at this stage we consider the risk to the public as low.
“We will continue to liaise with schools impacted and have been working closely with the Department of Education and the Education Authority (EA) this morning to provide reassurance.”
The EA statement said: “We are aware that another threatening email message has today been sent to a large number of schools in NI.
“The message has similarities with a bogus threat sent last month, which was declared a hoax by PSNI.
“EA is liaising with police on this latest message.
“At this stage, we have not been made aware of any evidence of any credible threat to schools.
“Investigations are continuing. It is for PSNI to determine the credibility or otherwise of any such message.
“As always, schools are advised to be vigilant and report any suspicious activity to PSNI.
“We fully appreciate that any message of this nature is distressing and can assure schools, parents/carers and children and young people that we will provide a further update following engagement with police.”
Last month, a number of schools in Northern Ireland and Scotland closed following a hoax bomb threat.
Stormont’s education minister Paul Givan said on that occasion that the threat was “Islamist” and had been signed off “Allahu Akbar”.
A Garda spokesperson said the force was “aware of a generic communication that has been sent to a number of educational establishments” in the Republic of Ireland.
The spokesperson said: “An Garda Síochána assess this threat as not credible and is not advising any educational establishment to evacuate.
“Gardaí are engaging with a number of educational establishments.”
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