Metris Prison
... that 29 inmates escaped from Metris Prison in Istanbul through a self-built tunnel while the prison was still under military administration?
... that 29 inmates escaped from <b id="mwBB8"><a href="./Metris_Prison" id="mwBCA" rel="mw:WikiLink" title="Metris Prison">Metris Prison</a></b> in <a href="./Istanbul" id="mwBCE" rel="mw:WikiLink" title="Istanbul">Istanbul</a> through a self-built tunnel while the prison was still under military administration?