Cliodhna Ward is competing at this year's Young Scientist & Technology Exhibition.

Kelly's distraught mother said the programme brought forward fresh information from the public but, most are unwilling to put their accounts on record.

Forecaster with Met Eireann, Gerry Murphy, says there'll be hazardous travelling conditions again.

Cathal Nolan from Ireland's Weather Channel predicts a reprieve in freezing conditions from Friday.

Please follow signs and stick to designated diversions.

Described as “not to be missed” by The Irish Independent.

The temperature in Kilcogy overnight was -8.2 degrees Celsius - the lowest recorded in the country.

He's not alleged to have threatened passengers but it led to teams of armed gardaí, rushing to the scene - while the station was evacuated and services suspended.