Spain will invest 3.76 billion euros (about $4 billion) in new aid to help affected citizens recover from the country's worst floods in decades, Prime Minister Pedro Sanchez said on Monday.

The fresh package comprising 110 measures comes after the government announced aid worth 10.6 billion euros ($11.5 billion) last week.

Spain will inject "all the necessary resources for as long as it takes," Sanchez told media at a news conference.