Dozens of people are feared dead after a Spanish high-speed train collided with another service south of the capital, Madrid. The incident involved a Renfe train and one operated by Iryo on a route connecting Madrid to Seville.

More than 500 passengers were traveling across both trains at the time of the collision. An initial death toll of 10 has been reported, but officials stated this figure is expected to rise significantly.

The Spanish Prime Minister, Pedro Sánchez, expressed shock at the "serious train accident" and confirmed he is in continuous communication with the transport minister regarding the situation. Emergency services were deployed to the scene, where images showed overturned train carriages and makeshift medical tents.

The exact cause of the crash is under investigation. Rail operator Adif confirmed the collision occurred between the two different train companies. The incident has disrupted rail services on the busy Madrid to Seville route.

High-speed rail has become a significant mode of transport in Spain, connecting major cities and carrying millions of passengers annually. The country boasts one of Europe's most extensive high-speed rail networks.

Accidents on this scale are rare on Spain's modern high-speed lines. Previous major incidents include a derailment in Santiago de Compostela in 2013, which killed 79 people and injured over 140.

Investigations into the cause of such accidents typically focus on factors including track integrity, signaling systems, and human error. The findings of the current investigation will be crucial in understanding how this tragedy unfolded.

Authorities are working to identify the victims and provide support to the injured and their families. The full impact on passengers and the wider rail network is still being assessed.