A crowd of enraged survivors hurled clots of mud left by storm-spawned flooding at the Spanish royal couple on Sunday during their first visit to the epicenter of their nation's deadliest natural disaster in living memory.

Authorities have yet to any give an estimate of the missing. Spanish state broadcaster RTVE shows a steady stream of appeals by people searching for family members.

The gargantuan recovery efforts in dozens of communities slowly moved forward. The prime minister said he'll ask for financial help from the European Union.

Emergency workers continued the search for victims of last week’s flash floods, while a national debate raged over who was to blame for the catastrophe.