The back-to-back disasters in January shocked the country and raised doubts about the safety of train travel in Spain, which boasts the world’s second-largest high-speed network after China.

“The entire state is doing – and will continue to do – everything possible to support the injured and the victims’ families, clarify the causes of the accident, and, if necessary, ensure justice is done,” Sanchez told parliament.

Spain’s rail system “is not perfect, but it is safe,” the Socialist premier added, vowing to take all necessary measures to prevent similar tragedies in the future.

Shock hit the rail sector after a collision between two high-speed trains in the southern region of Andalusia on January 18 resulted in the death of 46 people – one of Europe’s deadliest such disasters this century.

Two days later, a commuter train in the Barcelona region ploughed into the rubble of a collapsed wall, killing the driver and injuring dozens.

The government reached a deal with railway unions on Monday to invest €1.8 billion (US$2.1 billion) to improve maintenance, create 3,650 jobs, and strengthen public rail safety.

The agreement prompted unions to call off a three-day strike that had begun on Monday to demand greater safety for their profession.