The British government is in talks to buy two prison ships to ease the current wave of overcrowding, according to the BBC.
An RAF camp is also being considered as one of a number of options to temporarily ease the pressure.
The Home Office has already sent out advice to courts to only jail dangerous and persistent offenders to help ease the situation in England and Wales.
Prison numbers are currently hovering near the 80,000 mark with just 2,000 new places due by the end of the year.
The Home Office has considered a number of Army sites, as well as the RAF base now being looked at in the north of England.
The current overcrowding crisis has seen hundreds of prisoners housed in police cells and has prompted fierce criticism from the opposition.
The government will have 350 extra places in a prison on Merseyside in the spring, and says it will have 2,000 more by the end of 2007, but another 8,000 promised new places will not be ready for four years, with funding and sites yet to be fully approved.
Source: BBC