There have been doubts raised by several experts on Iran's actual death toll.
Dis na nearly one month before dem report di first official case of coronavirus dia.
The leaked documents also indicated that there was a disproportionate number of deaths among migrants and refugees, with most coming from Afghanistan.
As Iran reported the highest single-day increase in coronavirus infection in almost a month, a report said that the death toll could be triple of what the Iran government claims.
State news sources reported Monday that one person dies of coronavirus in Iran every seven minutes, according to Reuters.
"Sadly, since late June, daily infections have been on a rising trajectory" in Qom in central Iran, Lari said. Yesterday health chiefs in the nation in the Middle East recorded 2,600 cases - the highest daily toll for nearly a month.
The official numbers will make Iran the worst-affected country by Covid-19 in West Asia.
A further 2,685 people tested positive for COVID-19 over the past 24 hours, raising the caseload to 309,437, according to ministry spokeswoman Sima Sadat Lari.
Iranian doctors had reportedly been warning of Covid-19 as early as December 2019, when the coronavirus was first discovered in China.
The leaked files also show that the country's first coronavirus death was January 22, almost a month earlier than the government previously admitted, the BBC reported.
However, the health ministry of the country reported only 14,405 deaths. Iranian health authorities denied the report and said there had been no cover-up.
The BBC was sent the figures by an anonymous source.
She said more than 272,535 patients have recovered so far, while 4,132 are still hospitalized in critical condition.
For example in the United Kingdom, there are doubts over the government's death tally of 46,201 because of the way deaths are counted, which is now under investigation. In February, when the virus was only know to be spreading in a few countries, a BBC Persian report said that deaths were being covered up.
The Chinese city of Wuhan was where the virus first took hold back in December, but since then various aspects of Beijing's information has been questioned and even discredited. This suggests that the true statistics have been suppressed deliberately.
Tehran, di capital, get di highest number of deaths with 8,120 pipo wey die with Covid-19 or symptoms wey dey similar to am.
"In total, more than 200,000 people have been hospitalised".