BRASILIA — Alarms rang out across the Brazilian city of Petrópolis on Thursday, warning of more heavy rain to come after floods and landslides killed at least 117 people with more than 100 missing.

The rescue mission has been temporarily called off and some people, fearing more destruction, are fleeing the city.

One volunteer rescuer said that finding survivors under the rubble was now "practically impossible".

This week's rainfall in Petrópolis was the heaviest in nearly a century.

The downpours on Tuesday alone exceeded the average for the whole of February, triggering landslides and floods in the city north of Rio and turning streets into rivers of mud. Homes were engulfed and vehicles swept away.

The first funerals took place on Thursday for the victims who had been formally identified, with the stories of those who died starting to come to light - like that of Helena, who had started at nursery just a few days before the landslide destroyed the home she shared with her family.

"I enjoyed my baby's company for little more than one year," her mother Giselli Carvalho, who also lost her mother and niece in the disaster, told Brazilian news channel Globo TV.

In Morro da Oficina, the BBC found residents struggling to comprehend the landslide which had swept through the middle of their once-crowded neighbourhood, wiping out everything in its wake.

Nilson de Oliveira Vargas Jr and his brother had been waiting for news of their sister, Marilene, for two days.

"She was in the kitchen with my niece," he told the BBC's Katy Watson. "When she heard the roar coming down the hill, she pushed her daughter out of the door and told her to run. My niece was saved, but my sister was left behind."

At the bottom of the destroyed area, a mother arrives to recover her daughter's body, flanked by a family with shovels in hand.

Families and authorities worked in unison as they searched through the rubble, picking apart the mangled steel and broken concrete mixed in with metres of thick red mud.

Residents need the experts to dig safely, but the rescue workers can't do it without the local knowledge.

However, hopes are fading: the death toll slowly rose through the day, but no more survivors were pulled from the wreckage, according to Brazil's National Civil Defence, which has been providing updates on Twitter.

And while relatives don't want to let go of hope in finding people alive, many were realistic this is a recovery operation now, not a rescue mission. The local morgue, already under strain, has been forced to use a refrigerated truck for extra space.

"Unfortunately, it is going to be difficult to find survivors," volunteer Luciano Goncalves told AFP, completely covered in mud.

"It is practically impossible. But we must do our utmost to be able to return the bodies to the families."

Nilson is one of those saying that help didn't come soon enough.

"I know my sister's case isn't the only one," he said. "We all deserve attention but for that very reason, we need to spread everyone out in an organised manner and start work."

For others, the alarms warning residents of more downpours indicated it was time to leave.

Nataly and her family carried plastic bags with food and their belongings. They were getting out of danger's way.

The deadly mudslide in Morro da Oficina had narrowly missed their house, but it was terrifying, she told our correspondent. She doesn't want to go through that again.

Caique da Silva Vieira and his partner Pamella are also now looking to move somewhere safer with their eight-month-old daughter, after they decided to stay put during Tuesday's downpours, witnessing the disaster for themselves.

"We heard a bang and we thought it was the electricity cables," Caique explained. "When we went out on to the terrace we saw everything coming down; it was a horrific scene."

Petrópolis, usually a popular tourist getaway to escape the summer heat, is now a city in trauma.

The neighbourhood has been ripped apart, yet brought together in the worst possible circumstances, united in grief and pain. — BBC