The Celtic League claims the Manx Government is breaching United Nations guidelines on the treatment of prisoners by housing adult and juvenile offenders together in prison.
Director of Information Bernard Moffatt says overcrowding at Victoria Road (pictured) has forced the move.
In the past, men and women have been forced to share wings because of an accommodation crisis.
Mr Moffatt says that was bad enough, but the present situation is even worse:
Drivers left confused as Telecabs seemingly ceases trading overnight
"This announcement has come out of the blue"
Work to prepare TT course road surface cost almost £600,000
DoI reveals figure in response to Freedom of Information request
"Eight hours of sleep doesn't mean you're fit to drive"
Warning from police amid increase in drink and drug driving
TT 2026: Delay confirmed ahead of Saturday racing
A further update will be issued at 12pm
TT organisers announce revised Saturday race schedule
Senior race to be restarted over four-lap distance tomorrow (6 June)