Pictures obtained by the BBC show large parts of the Canadian city of Fort McMurray in ruins following a devastating wildfire.
The exact scale of the damage is difficult to assess, as access to the city is restricted.
Officials have given few details other than to report that 1,600 homes and other buildings have been destroyed.
However, people who have seen the damage say whole neighbourhoods have been wiped out.
One picture shows the ruins of many houses, with a car untouched by fire. In another, a destroyed church is surrounded by rubble.