An incident involving a number of casualties and emergency responders will be taking place in Lowestoft this weekend – but all will not be as it seems.

Members of the public are being urged not to be alarmed by what could appear to be a major incident at one of the town's schools.

That is because St John Ambulance will be running a casualty simulation exercise to train its volunteers and staff.

Ian Groves, a spokesman for the charity, said the event at East Point Academy in Kirkley Run on Saturday evening would be part of their continuing professional development.

Mr Groves said: 'This is an event for a number of volunteers at the Lowestoft unit and is likely to appear to onlookers to be a real incident. There will be signs at the entrance to the Academy on the day and a member of the team will also be at the entrance to explain what is happening.

'We would like to reassure members of the public that this is purely an exercise, not an actual major incident.'