At least seven people are missing after torrential rain caused flash floods in southern and eastern Spain, shutting roads and high-speed train connections. Raging mud-coloured flood waters swept through the town of Letur in the eastern province of Albacete on Tuesday, pushing cars through the streets, images broadcast on Spanish television showed. Emergency services workers backed by drones were looking for six people who were missing in the wake of flash floods in the town, the central government’s representative in Castilla-La Mancha told Spanish public television TVE. “The priority is to find these people,” she added. Police in the town of L’Alcúdia in the eastern region of Valencia said they were looking for a truck driver who had been missing since early afternoon. “I am closely following with concern the reports on missing persons and the damage caused by the storm in recent hours,” prime minister Pedro Sánchez wrote on X, urging people to follow the advice of the authorities. “Be very careful and avoid unnecessary trips,” he added. Twelve flights that were due to land at Valencia airport have been diverted to other cities in Spain due to the heavy rain and strong winds, Spanish airport operator Aena said. Another 10 flights that were due to depart or arrive at the airport were cancelled. National rail infrastructure operator ADIF said it had suspended high-speed trains between Madrid and the eastern port of Valencia due to the effects of the storm on main points of the rail network in the Valencia region. A high-speed train with 276 passengers derailed in the southern region of Andalusia, although no one was injured, the regional government said in a statement. Emergency services rescued scores of people in Álora in Andalusia, some by helicopter, after a river overflowed. State weather agency AEMET declared a red alert in the Valencia region and the second-highest level of alert in parts of Andalusia. Several roads were shut in both regions due to flooding. The intense rain has been attributed to a phenomenon known as the gota fría, or “cold drop”, which occurs when cold air moves over the warm waters of the Mediterranean Sea. This creates atmospheric instability, causing warm, saturated air to rise rapidly, leading to the formation of towering cumulonimbus clouds in a matter of hours and dumping heavy rain across eastern parts of Spain. Scientists warn that extreme weather such as heatwaves and storms is becoming more intense as a result of the climate crisis.