The incident occurred on the line connecting Las Matas, Príncipe Pío, Atocha, and Chamartín, eventually stopping at El Barrial Station. The situation caused moments of tension among passengers during peak hours.

The events unfolded at 7:42 AM when the 112 emergency service was alerted about an individual claiming to have a bomb on a C-10 line train bound for Atocha-Chamartín. Passengers were quickly evacuated onto the tracks as the security protocol was activated.

National Police agents, including plainclothes units and the Canine Unit, along with Samur-Civil Protection personnel, responded to the scene. After a thorough inspection of the train and the individual, who was carrying a backpack, no explosive device was found.

The man was arrested as the alleged perpetrator of a crime of threats. The railway service, which was interrupted in both directions for nearly an hour, began to progressively resume from 8:33 AM.