Several schools have been evacuated in a new wave of threats made to schools across the country.
Threats were reported in Wisconsin and at least 9 other states throughout Wednesday.
In all of the situations, the schools were promptly evacuated and the buildings were searched.
Most of the schools resumed classes after the searches.
Experts have warned that this may be part of the ‘swatting’ trend.
Officials confirmed that they received multiple automated phone threats.
27 schools were also evacuated in Britain this week after they received a wave of fake bomb calls.
The South West Counter Terrorism Unit has now launched a nationwide investigation into the threats which it is treating as ‘malicious hoax communications’.
Police across the UK expressed that the threats were not credible.
A police spokesperson said: A spokesman said: ‘Several police forces are investigating a series of malicious hoax communications to schools across the country.
‘At this stage there is no information to suggest the incidents are terrorist-related, however the SWCTIU are coordinating the approach to establish the facts. ‘
