Hundreds of thousands of mourners from around the world are gathering in St Peter's Square for the Pope's funeral this morning.
Presidents, prime ministers and religious leaders are all attending the service, following Francis's death on Monday, aged 88.
He requested a 'simple' tomb 'in the ground' and will be the first pontiff buried outside the Vatican City in over a century.
In 2018, the Pope visited Knock- and was greeted by massive crowds, including mum Mary McCarthy.
Matteo Sgamma's heading the day's security - speaking with an interpreter - he's been explaining what lies ahead.