Pope Francis' personal doctor has died of complications related to COVID-19, the Vatican's newspaper L’Osservatore Romano announced Saturday.

Fabrizio Soccorsi, 78, was being treated for cancer at a hospital in Rome at the time of his death, according to the newspaper.

Soccorsi was chosen by the pontiff to be his personal physician in 2015.

In an interview with Italian television channel Canale 5 that aired Sunday night, Francis said COVID-19 vaccinations will begin at the Vatican next week and that he will get the shot.

ABC News' Phoebe Natanson contributed to this report.

Sputnik V, a COVID-19 vaccine developed by Russia, has been registered by the Palestinian Ministry of Health for emergency use in Palestinian self-ruled territory, Russia's sovereign wealth fund announced Monday.

The first shipment of doses is expected to arrive next month, according to a press release from the Russian Direct Investment Fund (RDIF), which is responsible for worldwide marketing of the vaccine.

The RDIF didn't say how many doses would be shipped to the Palestinian Authority -- which governs parts of the West Bank under interim peace deals with Israel -- but that supplies would be facilitated by manufacturing partners in India, China, South Korea and other countries.

As of Jan. 5, the World Health Organization had recorded more than 157,000 confirmed cases of COVID-19 in the occupied Palestinian territories, including at least 1,578 deaths.

ABC News' Patrick Reevell contributed to this report.

More than 50,000 doses of a COVID-19 vaccine developed by U.S. biotechnology company Moderna are expected to arrive in France on Monday, according to a statement from the country's health ministry.

France should have nearly 8 million doses of the Moderna vaccine by the end of June, the health ministry said.

Last week, the European Medicines Agency authorized the Moderna vaccine for use across the European Union. Another COVID-19 vaccine developed by U.S. pharmaceutical giant Pfizer and its German partner BioNTech was approved two weeks earlier. Both vaccines are administered in two doses.

French Health Minister Olivier Veran told Europe 1 radio that the Moderna doses will then be sent to towns and cities with the highest virus circulation. The doses should reach vaccination centers by Wednesday, he said.

By the end of the weekend, Veran said, more than 100,000 people should have received a first dose of the vaccine.

France has faced criticism for a slow vaccine rollout compared to its EU neighbours.

ABC News' Ibtissem Guenfoud contributed to this report.

A new, more infectious variant of the novel coronavirus that was first detected in the United Kingdom has now been discovered in Mexico.

The strain, called B117, was confirmed in a 56-year-old foreign citizen who had traveled from Amsterdam to Mexico City on Dec. 28, and then to the northeastern city of Matamoros the following day. The individual was asymptomatic when he arrived in the country, according to Mexico's director general of epidemiology, Jose Luis Alomia Zegarra.

After testing positive for COVID-19, the man was admitted to a Mexican hospital last week where he remains intubated, Zegarra said.

Genomic sequencing of the patient's sample that tested positive for COVID-19 revealed its B117 lineage. More than 500 suspected cases of the U.K. variant have been tested in Mexico, but this is the country's first verified case, according to Zegarra.

Mexican health authorities are tracking contacts of the patient, including people who traveled on the same flight. Two individuals who showed symptoms have since tested negative for COVID-19, while another 31 are asymptomatic and remain in isolation. Officials have been unable to locate 12 others, Zegarra said.

The highly contagious strain has become prevalent in London and other parts of southeast England, after first being identified in the English county of Kent in September. The B117 variant has since been detected in over a dozen other countries.

Weeks after video emerged of mostly maskless partygoers at U.S. President Donald Trump's Mar-a-Lago Club in Palm Beach, county officials are cracking down.

Palm Beach County sent a letter this week, acquired by ABC News, warning the club and saying officials had met with representatives from the club about violations. Masks are mandatory in the county in all businesses or establishments, and anywhere in public social distancing cannot be maintained. The mandate is currently in place through Jan. 20 -- the same day the county's most famous resident will be exiting the White House.

"Thank you for meeting with us last week to discuss the concerning allegations regarding the Mar a Lago New Year's Eve party and lack of facial coverings being worn during evening activities," the county wrote in the letter addressed to Bernd Lembcke, executive vice president and managing director of Mar-a-Lago Club.

"We recount that you provided masks for all party goers who attended the party and that you provided additional masks for those that walked from the reception area to the main dining ballroom," the letter continued. "Although you provided these important steps, it seemed that based on the video evidence, there was a breakdown in enforcement of the mask orders that led to almost the entire room of guests being without masks during the later evening activities."

The letter also includes a confirmation of the violation, which is a first-time warning, that lays out a fine of up to $15,000 for each potential future violation.

Trump has consistently downplayed wearing masks over the course of the entire pandemic. Despite telling people to wear masks on occasion at official briefings, he also mocked others for wearing them, including President-elect Joe Biden. Many supporters have decried mandates and openly flouted rules, including maskless Trump supporters who stormed the Capitol last week.

ABC News' Will Gretsky contributed to this report.