Liverpool John Lennon Airport (JLA) explained why emergency services were out in force at the site.
The airport, based in Speke, posted on Twitter to warn people "not to be alarmed" when they see emergency service crews, including from police, ambulance and fire. A spokesperson from JLA said this was due to an exercise which will be taking place this morning.
According to the airport, this is a regular exercise which takes place to test plans in place for emergency services response in the event of an incident at the airport. JLA added it will be "business as usual" for all flights due to operate today.
