In Valencia, police with megaphones urged people to return home when the first raindrops fell on Sunday evening, according to a journalist from AFP. Spain's Meteorological Institute Aemet has issued a red warning, the highest level, and warns that up to 90 millimeters of rain could fall within an hour.
In connection with the country's royal couple and prime minister visiting Paiporta on Sunday, members of the royal family were hit by mud in the face, Queen Letizia was seen trying to wipe away mud residue that had stuck.
Security personnel decided on evacuation, and both the prime minister and the royal couple were taken away from the city center where they were to show sympathy with the flood victims.
The royal couple, Sánchez, and Valencia's regional leader Carlos Mazón were met with insults, and mud and objects were hurled at them during Sunday's visit to the city.
Screamed "murderers"
The inhabitants believe that the help is not sufficient and has taken too long.
Murderers, murderers, screamed some of the affected, according to El Mundo, while others demanded the regional leader's resignation.
Riding police had to intervene several times to protect the delegation from the crowd.
Queen Letizia and Sánchez interrupted the visit, while King Felipe VI and Carlos Mazón first tried to calm down the situation without succeeding.
Condemns violence
"People threw mud pies and other objects. At that moment, the government's entourage chose to activate a security protocol and take (the prime minister and the royal couple) to a checkpoint," the prime minister's office announced in a statement.
After the incident, Prime Minister Sánchez says that although he sympathizes with the suffering of the affected, "all forms of violence" are unacceptable.
No one in the delegation was injured, reports the newspaper El País.
The royal couple was also scheduled to visit the affected town of Chiva, but the visit has been postponed, announces the Spanish royal court.
Over 200 people have died in the disaster.
Corrected: In an earlier version of the text, there was an incorrect description of Almería's geographical location, as well as an incorrect image caption.