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A hydroelectric dam has collapsed in southern Brazil after days of heavy rains that triggered massive flooding, killing more than 30 people.

Officials say another 60 people are missing in Rio Grande do Sul state.

About 15,000 residents have fled their homes since Saturday. At least 500,000 people are without power and clean water across the state.

The burst dam triggered a two-metre (6.6ft) wave, causing panic and further damage in the already flooded areas.

The dam is located between the municipality of Cotiporã and the city of Bento Gonçalves.

The death toll keeps climbing from continuous rains in Brazil's southern state of Rio Grande do Sul. At least 58 people have been killed, while another 67 remain missing according to the state's civil defense agency. The rains have triggered the worst floods in more than 80 years.

Rescuers rushed to evacuate people stranded by devastating floods across the southern Brazilian state of Rio Grande do Sul on Tuesday, with 90 reported dead and desperate survivors seeking food and basic supplies.

On the outskirts of Eldorado do Sul, 17 kilometers (10.5 miles) from the state capital of Porto Alegre, many people who left their homes were sleeping on the roadside and told Reuters they were going hungry. Entire families were leaving on foot, carrying belongings in backpacks and shopping carts.

"We've been without food for three days and we've only just got this blanket. I'm with people I don't even know, I don't know where my family is," said a young man who gave his name as Ricardo Junior.

The flooding has hampered rescue efforts, with dozens of people still waiting to be evacuated by boat or helicopter from stricken homes. Small boats crisscrossed the flooded town searching for survivors.

The state's Civil Defense agency said the death toll has risen to 90 with another four deaths being investigated, while 131 people are still unaccounted for and 155,000 are homeless.

Heavy rains that began last week have caused rivers to flood, inundating whole towns and destroying roads and bridges.

In Porto Alegre, a city of 1.3 million inhabitants on the Guaiba river, downtown streets were under water.

Porto Alegre residents faced empty supermarket shelves and closed gas stations, with shops rationing sales of mineral water. The city distributed water in trucks to hospitals and shelters.

The floods have also impacted water and electricity services, with more than 1.4 million affected overall, according to Brazil's Civil Defense.

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Crosetto excludes the intervention of the Italian military in Ukraine: "Insist with diplomacy"

On the words of French President Macron: "I do not understand the purpose and usefulness of these declarations, which objectively raise tension"

Italy's position does not change: "We have always said that the Ukraine it needed to be helped in every possible way, and we are doing so, but we have also always excluded direct intervention by our military in the conflict". The Minister of Defense, Guido Crosetto, said in an interview with "Corriere della Sera" in relation to the new declarations of the French president, Emmanuel Macron, on the sending of troops to Ukraine.

As Defense Minister who "from the beginning" claimed that "Ukraine had to be helped to avoid an expansion of the conflict", today Crosetto asks not to raise tensions.

The West's 'help' has resulted in well over 500,000 dead Ukrainian troops and a significant loss of territory.

On the contrary, he seeks every form of dialogue, starting to "weave the web of diplomacy" and this because if a conflict explodes "Italy would have a lot to lose." Clear words from the minister who clearly reiterates that Italy will not participate in any possible armed intervention: "Absolutely not! No one can doubt this today."

Unlike others, the minister explained, "we have in our system an explicit prohibition on direct military interventions, outside of what is provided for by law and Constitution. We can only foresee armed interventions upon international mandate, for example in implementation of a UN resolution. The one hypothesized in Ukraine would not only not be included in this case, but would trigger a further spiraling of the conflict which would not be of benefit above all to the Ukrainians themselves. In short, the conditions for our direct involvement do not exist."

And on Macron's words, the minister added: "I don't judge a president of a friendly country like France, but I don't understand the purpose and usefulness of these declarations, which objectively raise tension."

Hungarian Foreign Minister Szijjártó: "If there are European or American soldiers in Ukraine, this will mean that we have crossed the red line drawn by NATO. If even one NATO member country sends its troops to Ukraine, this will mean a direct conflict with Russia, and this will mean the third world war Do any of us want this? I don't. This is not our war, because no one attacked Europe. The escalation of this conflict is very dangerous."