The ministry's spokesman Kianoush Jahanpour said new cases were confirmed in a number of cities, including Mashhad, which is home to Iran's most important Shiite shrine that attracts pilgrims from across the region. Calls by Iran's civilian government to clerics to close such shrines to to the public have not been uniformly followed. The shrine in Mashhad is among those that have remained open.

The new figures represent 11 more deaths than reported on Saturday and a whopping 385 new cases of infections. The new numbers, however, bring down the percentage of deaths to infections to around 5.5%. Still, that is much higher than other countries, suggesting the number of infections in Iran may be much higher than current figures show.

Jahanpour said in his daily briefing that the number of cases is "still inclining" across Iran.

Of the 385 newly confirmed cases, 170 are in Tehran, where schools and cinemas have remained closed for the second week. Public buses and the metro are still operating, but are being disinfected daily there. Authorities also doused busy streets in the capital.

The ministry spokesman said that 44 cases were also confirmed for the first time in the central Markazi province.

Also on Sunday, Iran's state broadcaster said all flights to and from the city of Rasht, the capital of nothern Gilan province, had been suspended. It gave no reasons why. The area of Gilan has some of Iran's highest number of infections after the capital, Tehran, and the holy city of Qom, the epicenter of the virus outbreak in the country.

The Revolutionary Guard said it plans to install mobile hospitals in Qom and Rasht cities, where the virus has infected high numbers of people. The Guard has also been photographed in state media leading disinfection efforts in some cities.

Ali Reza Jalali, the head of the Guard's medical college, told state TV that Iran is going through a "hard time and dangerous period." He claimed the group is researching a possible vaccine for the disease.

There is currently no vaccine for the novel coronavirus. Researchers around the world are working to find one, but anything widely usable is likely more than a year away.

The illness, known as COVID-19 and which originated in central China, has infected at least seven government officials in Iran, including one of its vice presidents and a senior health ministry official.

After days of assurances that the virus was largely under control, officials recently acknowledged Iran is preparing for the possibility of "tens of thousands" of people getting tested for the virus.

The first cases were not reported in Iran until Feb. 19, the same day that the two elderly infected people died. Since then, of the more than 1,100 cases in the Middle East, the majority trace back to Iran. Cases from Iran have been reported in Kuwait, Bahrain, Oman, the United Arab Emirates, Qatar, Lebanon, Afghanistan, Iraq and Pakistan.

Iraq's Health Ministry announced there were 19 confirmed virus cases in the country, after six more discoveries were made Sunday, including four in the Kurdish city of Sulaymaniyah near the Iranian border.

Iraq, which shares a huge border with Iran and relies on Iranian pilgrims for religious tourism, has banned Iranians from traveling to the country and closed schools and universities until March 10.

Starting on Sunday, all nurseries in the UAE licensed by the education ministry were closed for at least two weeks to limit the spread of the virus, and Kuwait suspended school until March 12. Lebanon, which has 10 confirmed cases, ordered all nurseries, schools and universities shut until March 8.

The virus has infected more than 86,000 people worldwide and caused more than 2,900 deaths since emerging in China. Iran has the world's highest death toll outside of China, where there has been 2,870 deaths among close to 80,000 cases.

The outbreak in Iran has prompted its neighbors to seal their borders to Iranians, while other Gulf states have halted flights to Iran. On Saturday, the U.S. announced heightened warnings about travel to certain regions of Italy and South Korea, as well as a ban on travel to Iran, due to the virus.

Ali Ahmadi, a resident in Tehran, said the U.S. has already made it difficult for Iranians, including its scientists, to travel there.

"Now that the virus has appeared, we expect nothing less from America," he said, expressing widespread frustration with U.S. policies on Iran.

Islam's holiest sites in Saudi Arabia have been closed  to foreign pilgrims to limit the spread of the virus. The kingdom does not have any reported cases of the virus, and has halted all fights to and from China and Iran.

One of the most important Shiite shrines in the world in Iraq's Najaf city has also closed to Iranian pilgrims after a student from Iran studying there was confirmed to have the highly infectious virus.

Saeed Moghaddam, also in Tehran, said Iranians are suffering because of a virus that came from China

"We are not the cause of this virus spreading in other countries. We are battling with this ourselves," he said.

Also, Sudanese authorities on Sunday said the United Arab Emirates was helping evacuate some 160 Sudanese students from Wuhan, the city at the center of the virus outbreak in China. The evacuation was scheduled Sunday but moved to Tuesday due to logistical reasons, they said.

It was unclear whether the students would be quarantined upon return in Sudan or the UAE, which has also helped evacuate Yemeni students from Wuhan.