The rabbits' owner moved back abroad, apparently, leaving the rabbits behind. It seems he was lodging in the house because the other residents decided to keep the rabbits and feed them up for food. Luckily someone got wind of this and called the RSPCA, taking the rabbits herself until rescue spaces could be found.
Both boys had mites. One was covered in scabs from being nipped at by his sibblings, whilst the other was all skin and bone, with nasty sores on his hocks. They were very young, with HUGE ears - I called them Radar and Radio!