At least 77 people have been killed and more than 100 injured as a passenger train derailed in north-western Spain, according to reports.

Up to 56 people have been killed after a passenger train derailed on a high-speed stretch of track in north-western Spain last night, according to reports.

Hundreds of thousands of protesters have been marching throughout Spain today in the first large-scale show of anger over new labour reforms that make it easier for companies to fire workers and pull out of collective bargaining agreements.