The first medical reports indicate that Horacio "Marciano" Cantero, lead singer of Los Enanitos Verdes, had serious complications with his only remaining kidney and had to be admitted to Intensive Care after an operation.

The artist passed away on Thursday night, Sept. 8, according to international media reports.

"Unfortunately he could not overcome the complications. I want to personally thank all the fans, all the friends of life, the family, all the prayers and support we have received these days," Javier Cantero, son of the vocalist, told Argentine media. 

According to local media, Cantero was already suffering from kidney problems his condition worsened after the band's last tour in different Latin American cities.

The band's last concert with him was on Aug. 14 in Orlando, Florida. They had future dates confirmed for November and December in different cities of the country.

Cantero led Los Enanitos Verdes since they formed it in 1979 with Felipe Staiti and Daniel Piccolo (who left the band in 2009).

Other artists have lamented his passing through social media, such as fellow Argentine singer Emmanuel Horvilleur, known for being part of Illya Kuryaki and the Valderramas who wrote: "Thank you for the music and human warmth, always." 

"We will miss you carnal Marciano Cantero, rest in peace," wrote Mexican band Molotov on Twitter. 

Chile's Beto Cuevas, leader of the band La Ley, also wrote a tribute.

"Lamenting the sad departure of one of the architects of rock in our language," he wrote.