Source: http://news.yahoo.com/confusion-over-rival-claims-control-donetsk-185927751.html
Unfortunately for Taruta -- a billionaire oligarch appointed by Kiev to run the restive region following the ouster of pro-Kremlin president Viktor Yanukovych in February -- he was being forced to talk to journalists from a meeting room in a luxury hotel.
A five-minute walk away the rebels have turned what should be his office on the top floor of the region's barricaded administration building into the headquarters of their self-declared state.
I don't understand what this part means: a five-minute walk away the rebels have turned what....