The video is on a BBC video player which I don't think can be directly embedded, so here is the link.

A plan to demolish a building in Cankiri, central Turkey went badly wrong when the 25-metre high structure rolled over onto its roof.

The building, a flour factory built in 1928 which had been idle since the 1980s, was scheduled to be demolished to make way for a shopping centre.

No-one was reported to have been injured.