The men – aged 49 and 36 – were detained after a two-month long police investigation in the capital Montevideo.
The police suspect that the hospital workers brought in poison from Brazil and gave it to the patients who were in a critical condition.
The alleged killings took place in the cardiology unit of the Maciel Hospital and in the intensive care unit of the Spanish Mutual Care.
Judge Rolando Vomero, who is overseeing the case, told the newspaper El Observador that other hospital staff and relatives of alleged victims reported what could be dozens of cases.
It gave no details about the allegations but said it was conducting its own investigation and expressed ‘profound concern’.
Some reports say the suspects had cited ‘humanitarian reasons’.
However, it is believed not all the patients were terminally ill.
The two men, who were apparently not working together, have not been identified.
Up to 50 people could have been killed through a combination of administered medication and other procedures, reports in Uruguay’s media suggest.
A spokesperson for one of the hospitals involved said that the deaths were the consequence of ‘psychopathic behaviour’ and not common practice at the medical institution, the BBC’s Vladimir Hernandez reports.
The South American country’s Public Health Ministry issued a statement saying it was cooperating with the investigation into ‘presumed criminal acts linked to the health area.’
Report by : Daily Mail