Unoccupied skyscraper in Chechnya engulfed in flames
4 April 2013 Last updated at 15:15 BST
One of the tallest buildings in the Chechen capital Grozny caught fire on Wednesday, 3 April.
Officials suspect an electrical fault in the unoccupied building caused the fire, but investigations are still under way.
Authorities say no-one was caught in the blaze.
Lu Yang reports.