Thirteen people caught up in a faulty accounting software scandal at British Post Office branches may have killed themselves and 59 more contemplated doing so, a public inquiry report published Tuesday said.

The Post Office wrongfully prosecuted around 1,000 subpostmasters — self-employed branch managers — between 1999 and 2015.

Errors in tech giant Fujitsu's Legacy Horizon accounting software incorrectly made it appear that money was missing from their accounts.