Neo-Nazis established network inside German jails

German authorities say they are tightening security measures after discovering a neo-Nazi network inside the country's prisons.

The network, which was used to try and organize financial help for far-right convicts and their relatives, was discovered in the state of Hesse after evidence was uncovered during a search of prison cells. Authorities say coded messages were sent between prisons by letter through the mail and also hidden in magazines. (AP)