An aerial view shows flooding triggered by a dam collapse near Brumadinho, Brazil, Friday, Jan. 25, 2019. Brazilian mining company Vale SA said it didn’t yet have information on deaths or injuries at the dam but said that tailings have reached the community of Vila Ferteco. (Bruno Correia/Nitro via AP)

An aerial view shows flooding triggered by a dam collapse near Brumadinho, Brazil, Friday, Jan. 25, 2019. Brazilian mining company Vale SA said it didn’t yet have information on deaths or injuries at the dam but said that tailings have reached the community of Vila Ferteco. (Bruno Correia/Nitro via AP)

SAO PAULO (AP) — A dam that held back mining waste collapsed Friday in Brazil, inundating a nearby community in reddish-brown sludge, killing at least seven people and leaving scores of others missing.

Parts of the city of Brumadinho were evacuated, and firefighters rescued people by helicopter and ground vehicles. Local television channel TV Record showed a helicopter hovering inches off the ground as it pulled people covered in mud out of the waste.

Photos showed rooftops poking above an extensive field of the mud, which also cut off roads. The flow of waste reached the nearby community of Vila Ferteco and an administrative office for Brazilian mining company Vale SA, where employees were present.

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″’I’ve never seen anything like it,” Josiele Rosa Silva Tomas, president of Brumadinho resident’s association, told The Associated Press by phone. “It was horrible ... the amount of mud that took over.”

Silva Tomas said she was awaiting news of her cousin, and many people she knew were trying to get news of loved ones.

Seven bodies had been recovered by late Friday, according to a statement from the governor’s office of Minas Gerais state.

Vale CEO Fabio Schvartsman said he did not know what caused the collapse. About 300 employees were working when it happened. About 100 had been accounted for, and rescue efforts were under way to determine what had happened to the others.

“The principal victims were our own workers,” Schvartzman told a news conference Friday evening. He said a restaurant was buried by the mud at lunchtime.

Another dam administered by Vale and Australian mining company BHP Billiton collapsed in 2015 in the city of Mariana in Minas Gerais state, resulting in 19 deaths and forcing hundreds from their homes.

Considered the worst environmental disaster in Brazilian history, it left 250,000 people without drinking water and killed thousands of fish. An estimated 60 million cubic meters of waste flooded rivers and eventually flowed into the Atlantic Ocean.

Schvartsman said what happened Friday was “a human tragedy much larger than the tragedy of Mariana, but probably the environmental damage will be less.”

There were no official reports of deaths, but the state fire department told The Associated Press that about 200 people were missing. The company said it did not have any further information.

President Jair Bolsonaro said he lamented the accident and sent three cabinet ministers to the area.

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“We will take all the possible steps to minimize the suffering of families and victims,” Bolsonaro said in a speech, which he posted on Twitter.

Bolsonaro, who assumed power Jan. 1, planned to tour the area aby helicopter on Saturday. The far-right leader campaigned on promises to jumpstart Brazil’s economy, in part by deregulating mining and other industries.

Environmental groups and activists said the latest spill underscored a lack of regulation.

The latest spill “is a sad consequence of the lessons not learned by the Brazilian government and the mining companies responsible for the tragedy with Samarco dam, in Mariana, also controlled by Vale,” Greenpeace said in a statement.

“History repeats itself,” tweeted Marina Silva, a former environmental minister and three-time presidential candidate. “It’s unacceptable that government and mining companies haven’t learned anything.”

The rivers of mining waste raised fears of widespread contamination.

According to Vale’s website, the mine waste, often called tailings, is composed mostly of sand and is non-toxic. However, a UN report found that the waste from the 2015 disaster “contained high levels of toxic heavy metals.”

Vale is Brazil’s largest mining company. Two hours after the accident, its stock fell 10 percent on the New York Stock Exchange.

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Marcelo Silva de Sousa reported from Rio de Janeiro. Peter Prengaman contributed to this report from Arraial do Cabo, Brazil.

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This story replaces paragraph 7 to correct spelling of name to Schvartsman.