Iranians who do not wear masks will be denied state services and workplaces that fail to comply with health protocols will be shut for a week, Iranian President Hassan Rouhani said on Saturday as he launched new measures to try to curb the coronavirus at a meeting of the National Headquarters of Fight against Coronavirus.

StWearing masks become mandatory in covered public places starting Sunday, Rouhani said on state television after tougher curbs were imposed in cities and towns in five provinces where the outbreak is rising after an easing of lockdowns from mid-April.

"Government employees should not serve people who do not wear masks and employees who do not wear them should be considered absentees and sent home," said Rouhani.

Those infected have a "religious duty" to notify others, Rouhani underlined then, adding: "Keeping your infection a secret violates the rights of other people."

Iran, the hardest-hit country by the COVID-19 pandemic in the Middle East region, reported 2,449 new cases on Saturday.

The total number of cases has approached 240,000 and a further 148 deaths bringing the country's toll to 11,408, Health Ministry spokeswoman Sima Sadat Lari said on state television.

The government has been trying to convince a reluctant public to accept masks and a week-long campaign by state television has been warning viewers that "Corona is not a joke."

One TV presenter at the end of every newscast puts on her mask and says: "There is no one in my immediate three meters, but I wear a mask outside the studio. You, too, wear one."

State media reported on Saturday that 19 Iranian football players from the national Esteghlal and Foolad Khuzestan clubs had tested positive for the coronavirus.

And five Iranian members of parliament have also tested positive, the semi-official Fars news agency said.

Meanwhile, Iran's armed forces have reduced their basic combat training to a month because of the increased spread.

(With input from Reuters and Xinhua)