Spain's king and queen joined the country's prime minister Pedro Sanchez on Sunday on a tour of the Valencia region where floods have killed at least 213 people and left dozens missing.
King Felipe VI and Queen Letizia's visit was announced as Spain's meteorological agency issued a fresh warning for heavy downpours in the Valencia region.
Up to 100 litres per square metre of water could fall in the province of Castellon and the area surrounding the city of Valencia, the agency forecast.
It also sounded the alarm for torrential rain that may cause flooding in the southern province of Almeria.
Last Tuesday, a year's amount of rain fell in the region around Valencia area over eight hours. Road and rail links were severed in the resulting floods.
Sanchez described the devastation as the worst natural disaster in the country's recent history.
On Saturday, he ordered the deployment of 10,000 extra soldiers and police into the region to help the rescue and clear-up operation. They are due to arrive during Sanchez's tour with the royal couple as well as the Valencia regional leader Carlos Mazon.
Criticism
Early on Sunday, emergency services issued an updated death toll of 213 people. Rescuers say the figure is likely to rise as they find vehicles trapped in tunnels and underground car parks.
Provincial chiefs – including Mazon – have come under fire over the warning systems before the floods. Some stricken residents have complained that the response to the disaster has been too slow.
"I am aware the response is not enough," Sanchez said. "There are problems and severe shortages. Towns buried by mud, desperate people searching for their relatives. We have to improve," Sanchez said.
In an interview with the Spanish newspaper El Pais, Transport Minister Oscar Puente said that certain places would probably remain inaccessible by land for weeks.
Help
As part of the salvage and recovery operation, thousands of residents have offered to help.
Susana Camarero, deputy head of the Valencia region, said town council chiefs within the province had been overwhelmed by the amount of solidarity and donations of food they had received for survivors.
On Friday morning, Spanish football authorities said games taking place this weekend would publicise a Red Cross fundraising campaign over the public address systems.
"Spain's professional football joins the condolences and expresses its solidarity with the families of the victims and the missing," La Liga said in a statement.
Real Madrid, which came under fire for poor sportsmanship for boycotting the Ballon d'Or award ceremony in Paris on Monday night, announced it would offer one million euros to the Red Cross.
"Real Madrid has decided to support this campaign to help the many families who are in a critical situation and need all our help and solidarity," Madrid said in a statement.
