An Irish bank robber, one of the most prolific in recent US history, has been sentenced to a further nearly six years in federal prison for a series of heists over a few months in one California city.

Irishman Adam Lynch, a self-confessed prolific bank robber, has been sentenced to five-and-a-half years in a US federal prison after pleading guilty to a string of hold-ups.

An Irishman dubbed the Ho Hum Bandit, who pleaded guilty to a string of bank robberies in the United States, has appealed to a judge for leniency, asking to be sentenced to time served and released from prison.