Controlled explosion brings down cranes at Hard Rock Hotel

Officials set up controlled explosives on Sunday at the Hard Rock Hotel in New Orleans, La., following the incident on Oct. 12, when two giant cranes collapsed during construction.

The In The Know video above reveals the moment the explosives went off.

The engineers set up the controlled collapse to alleviate the damage caused by the cranes. According to the New Orleans fire chief, who spoke to NBC News, this was the most efficient and the safest way of removing the cranes. Both cranes are still partially left upright up against the 18-story building.

Nearby residents were temporarily relocated as a safety precaution.