RESCUERS waded into submerged villages in southern India on Sunday in a desperate search for survivors cut off for days by floods that have already killed more than 350 people.

Entire villages in Kerala have been swept away in the state’s worst floods in a century, and emergency responders fear the death toll will rise as they reach areas almost entirely underwater.

In Thrissur, one of the worst-hit districts, rescuers sifting through inundated houses have discovered the bodies of those unable to escape as the floodwaters quickly rose.

“They didn’t think that it would rise this high – 10 to 15 feet at some places – when the initial warnings were issued,” said Ashraf Ali K.M, who is leading the search in the small town of Mala.

“Some of them later gave distress calls when the water rose high and fast,” he told AFP at the scene, where dead cattle and other livestock floated past.

Thousands of army, navy and air force troops have fanned out across Kerala to assist as distress calls sound out across the idyllic tourist hotspot.

The death toll stands at 357, local officials said, with 33 killed in just the last 24 hours.

Among the dead was a mother and son in Mala, whose home collapsed around them late Saturday.

Another was a local man who volunteered for the search and rescue mission. His body was retrieved by comrades early Sunday, said Dibin KS, a Kerala firefighter, in a grim reminder of the perils facing rescuers.

Officials say many houses are irreparably damaged across the state, and have warned residents against return ing to them.

Thousands trapped

Roads and 134 bridges have been damaged, isolating remote areas in the hilly districts of the state which are worst affected.

With power and communication lines down, thousands remained trapped in towns and villages cut off by the floods amid growing shortages of food and water.

A train from Pune, in Maharashtra state, embarked south on Saturday for Kerala laden with one million litres of drinking water.

Panic-stricken flood victims have been making appeals on social media for help, saying they cannot get through to rescue services.

In Mala, villagers in desperate wait had to improvise as the floodwaters rose.

Jobin K John, a local rescuer, showed pictures of locals rowing through the murky brown waters using kitchen pots as rafts to reach their stricken neighbours.