It is on La Opinion de Murcia:
'The Alcantarilla city council approved this Thursday the agreement with the autonomous community and Adif-Alta Velocidad to cover the underground section of the Mediterranean Corridor as it passes through the city, in a 996-meter-long tunnel from the future station to the calle Término.'

https://www.laopiniondemurcia.es/municipios/2021/03/26/tunel-1-000-metros-soterrara-45907189.html