LONDON — It’s been a strange sort of prison break: no daring escapes, no Hollywood getaways — just inmates quietly released, by mistake, onto the streets of Britain .

What once might have been an isolated blunder comes at an unwelcome time in a country strained by rising prices, stagnant wages and crumbling public services.

One man, an Algerian sex offender, was arrested in London on Friday after being freed in error nine days earlier; another, a British national and convicted fraudster, accidentally released from the same prison shortly afterward and turned himself in on Thursday.

Their cases followed the mistaken release of a convicted sex offender from a separate prison in October, which sparked a three-day manhunt before he was rearrested.

At least four prisoners released in er

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