Justice Secretary David Lammy has now issued a statement, following the mistaken release of yet another foreign offender from prison.
It follows sex offender Hadush Kebatu being wrongly released last month, before being recaptured and deported.
The deputy PM said: "I am absolutely outraged and appalled by the mistaken release of a foreign criminal wanted by the police.
"The Metropolitan Police is leading an urgent manhunt, and my officials have been working through the night to take him back to prison.
"Victims deserve better and the public deserve answers. That is why I have already brought in the strongest checks ever to clamp down on such failures and ordered an independent investigation, led by Dame Lynne Owens to uncover what went wrong and address the rise in accidental releases which has persisted for too long.
"This latest incident exposes deeper flaws across the failing criminal justice system we inherited.
"Dame Lynne Owens’ investigation will leave no stone unturned to identify these issues, so we can fix them, improve safeguards and ensure the public is properly protected."
It's understood that Lammy knew about the incident when he entered DPMQ's, but declined to answer the question when asked by the Shadow Defence Secretary James Cartridge.