The deaths, announced by Health Ministry spokeswoman Sima Sadat Lari on national TV, take the national toll to 35,298.
Lari said the number of confirmed coronavirus cases increased by 7,719 to 620,491.
President Hassan Rouhani said on Saturday that new restrictions will take effect on Wednesday in 71 cities including 25 of Iran’s 31 provincial capitals for 10 days.
The head of the virology department at Masih Daneshvari Hospital in Tehran, Alireza Naji, warned that Iran could reach 900 confirmed coronavirus deaths per day if more restrictions on movement and gatherings are not imposed.
To stem a third wave of the virus in Iran, the government has banned weddings, wakes and conferences in the Iranian capital until further notice.
Tehran police extended by one week the closure of businesses including beauty salons, teahouses, cinemas, libraries and fitness clubs.
Tehran’s City Council has proposed a two-week lockdown of the city. Tehran is the most populated city in Iran and is believed to have the highest coronavirus mortality rate.
Deputy Minister of Health Iraj Harirchi warned that the number of COVID-19 patients will rise in the coming days as the number of tests increases.
Speaking on national TV, Harirchi said people should know that “the most important indicator” of the spread of the respiratory disease is “the daily death rate.”
He said between 10 and 18 percent of those hospitalized for COVID-19 have died.
Head of the Islamic Republic of Iran Medical Council Mohammadreza Zafarqandi told ISNA that 15 percent of coronavirus patients who are admitted to hospitals cannot recover from the disease.
Zafarqandi said the figure in other countries is five percent on average.
Reuters and AP contributed to this story.