MOSCOW >> The Russian capital, Moscow, today woke up to a lockdown obliging most of its 13 million residents to stay home, and many other regions of the vast country quickly followed suit to stem the spread of the new coronavirus.

A stern-looking President Vladimir Putin warned his envoys in Russia’s far-flung regions that they will be personally responsible for the availability of beds, ventilators and other key equipment.

“We have managed to win time and slow down an explosive spread of the disease in the previous weeks, and we need to use that time reserve to the full,” Putin said.

Russia so far has been relatively spared by the outbreak, with 1,836 confirmed cases and nine deaths, but the number of people testing positive has risen quickly in recent days and authorities are bracing for the worst.

Putin has declared that only people employed by essential sectors should work this week, leaving it to regional authorities to spell out the details.

Moscow Mayor Sergei Sobyanin followed up by ordering Muscovites to stay home starting today except for medical emergencies and runs to nearby shops. He said the city will issue special passes for those who need to keep working and track all others with electronic surveillance.

“We will steadily tighten controls,” Sobyanin told a Cabinet meeting. “I hope that by the week’s end we will have information systems allowing us to fully control citizens’ movements and prevent possible violations.”

On Tuesday, the Russian parliament is scheduled to approve a bill that imposes prison terms of up to seven years and fines of up to 2 million rubles (about $25,000) — a huge sum in a country where an average monthly salary hovers around $500 — on violators of the lockdown.

Moscow has a sprawling system of surveillance cameras complete with facial recognition technology, which were tested during anti-Kremlin rallies last year to track down protesters.

City authorities have also used cell phone location data from mobile providers to monitor those who were ordered to self-quarantine for two weeks after arriving from abroad.

Russia took early steps to counter the outbreak, closing the borders with China and then barring access to Chinese citizens last month when China was still the world’s hottest coronavirus spot.

Authorities followed up by screening arrivals from Italy, France, Spain and other countries worst-affected by the outbreak, and obliging them to self-quarantine. Last week Russia cut all international commercial flights and finally fully closed its borders effective today, with the exception of diplomats, truck drivers and a few other categories.

Russian officials said those measures helped slow down the spread of COVID-19, but acknowledged that the disease is accelerating rapidly and relatively low numbers of confirmed cases could be explained by insufficient screening.

For most people, the coronavirus causes mild or moderate symptoms such as fever and cough. But for others, especially older adults and people with prior health problems, it can cause severe symptoms like pneumonia and can be fatal.

Authorities have converted several hospitals in Moscow to treat coronavirus patients and thousands of construction workers labored around the clock at a construction site on Moscow’s outskirts to build a new specialized hospital to be ready in a few weeks.

The Defense Ministry also launched a massive effort to build 16 hospitals across the country in a matter of weeks. Last week, the military also conducted massive drills across Russia to disinfect and quarantine broad areas.

Despite those efforts, many in Russia worry that the nation’s underfunded health care system that just recently underwent massive cuts could be easily overwhelmed by the crisis.

Putin told his envoys in the regions today that they must quickly report the real situation with ventilators and other essential equipment, prepare for moving seriously ill patients between regions and mobilize medical personnel, including medical students. He also ordered a sharp increase in screening. Until last week, just one laboratory in Siberia was analyzing the coronavirus tests.

In a move reflecting the gravity of the crisis, Putin last week postponed a vote on constitutional amendments that would allow him to stay in office until 2036 if he chooses.

Russian authorities haven’t restricted travel to and from the capital city. Many residents of the Moscow region commute to work in the capital.

In a sign of lack of sync between various state agencies amid quick-paced developments, police in the Moscow region on Sunday night announced a curfew on top of the lockdown, but the authorities quickly denied the announcement.

Putin has hailed Moscow’s lockdown as “necessary and justified.” St. Petersburg, Russia’s second largest city, and over a dozen other regions from the westernmost exclave of Kaliningrad to Tatarstan on the Volga River to the Yekaterinburg region in the Urals quickly followed Moscow’s example and imposed similar lockdowns.

Russia’s leading opposition figure, Alexei Navalny, today blasted the Kremlin for longtime neglect of the country’s hospitals and called for public donations to help them. He posted a letter from a doctor at one of Moscow’s hospitals treating coronavirus patients who said staff have run out of protective suits and have to reuse those they have worn.

Kremlin critics also voiced concern that the government would use the lockdown to further tighten political controls and crack down on dissent. The authorities already have declared a campaign against “fake news” about the coronavirus, tracking down social media users making claims that contradict official figures on coronavirus figures. Some already have been given heavy fines.