As climate change exacerbates weather patterns along Spain's Mediterranean coast, floods are becoming commonplace and some previous incidents have been deadly. But after at least five decades without a major catastrophe, many people in Valencia were unaware of the grave dangers posed by flash flooding or how to respond.

Oct. 30 (UPI) -- Dozens are dead and many still feared missing in flash flooding to Spain's southeast in western Europe that Spain's defense minister called "unprecedented" with another European leader pointing to the "reality" of climate change. At least 72 people were dead, according to officials.

In the latest demonstration over the floods, protesters filled the centre of Valencia demanding the resignation of regional government leader Carlos Mazon and chanting “Killers!”. “Our hands are stained with mud, yours with blood,” read one banner. Some demonstrators dumped muddy boots outside the council building in protests.

Protesters filled the streets of Valencia to demand accountability for the handling of catastrophic floods that have claimed more than 200 people.

Tens of thousands of people marched Saturday in Valencia and other Spanish cities to voice their anger at the authorities' handling of deadly floods.

Thousands of people demonstrated in Valencia. The protests are a response to the way regional authorities have handled the devastating floods, reports Reuters. In the latest demonstration over the floods,