Armed police were called to a technology college last Friday after alleged threats were made on Facebook.
Merseyside police confirmed to ComputerworldUK.com that an incident took place at St Aelred's Catholic Technology College in Newton-le-Willows after reports someone had made threats to kill there.
However the police refused, “for operational reasons,” to confirm that they had been tipped off by the FBI where the threat was detected using scanning software to pick up suspicious word combinations.
A 19-year-old was arrested for the incident and later released on bail.
According to BBC reports staff at the school said the FBI raised the alarm. The Bureau discovered a posting showing a picture of a gun held above a scrawled note, which read "tomorrow - last day of school" mentioned bullies and "leaving this world".
Head teacher Edward Marr wrote to parents saying, "Police officers attended school at 0800 am on Friday morning. They had a photograph from the internet and asked if I could identify a person on it.
"It emerged that a threat had been made against the school which had been picked up by the FBI in America and passed eventually, as the school was identified, to Merseyside Police.”