About 500 people are estimated to live nearby.

During the voting period, the cardinals are cut off from the outside world – denied phones and access to the internet or newspapers.They sleep in Casa Santa Marta, a five-story guesthouse within the Vatican complex.

The election is held in strict secrecy inside the Sistine Chapel, famously painted by Michelangelo.Each cardinal votes for the candidate they wish to become Pope. They can vote for themselves if they wish.A new Pope is elected when a candidate has secured the support of 90 cardinals - which can take several rounds of voting.

In previous centuries, conclaves have gone on for weeks or months. Some cardinals have even died during the process.To the outside world, the only information about how the conclave is progressing is smoke from the chapel's chimney when ballot papers are burned after each round of voting.

Black smoke signals failure. White smoke means a new Pope has been chosen.

The new Pope normally appears on the balcony overlooking St Peter's Square within an hour of his selection.Meanwhile a spokeswoman for the jail, which is run by French prison operator Sodexo, confirmed the investigation had been launched, "as with all deaths in custody".

She said the prison was unable to comment further while the probe takes place, but added that "our thoughts and condolences are with the family at this time".Mr Usher also passed on his condolences to O'Brien's family and friends.

A £100m development where more than 3,000 civil servants are to relocate remains ahead of schedule.Terracotta façades have been installed at the seven-storey office block in Blackpool, which forms part of the Talbot Gateway development.