Hoax bomb threat prompts Madrid skyscraper evacuation

A 57-storey office tower in Madrid's business district has been evacuated due to an unspecified security threat.

A hoax bomb threat called in to the Australian Embassy in Spain prompted the evacuation of a 57-storey office tower in Madrid's business district.

Staff at the embassy in Madrid received a phone call with the security threat around midday today, said a National Police spokeswoman.