Britain's Prince Charles has tested positive for COVID-19 and is self-isolating, his office said Thursday.

A message on his official Twitter page said Charles tested positive on Thursday morning and was "deeply disappointed" not to be able to attend a scheduled visit in Winchester, England.

Suddenly, Bayern Munich has problems it didn't have last week.

After stretching its Bundesliga lead to nine points over the weekend with an almost complete squad at coach Julian Nagelsmann's disposal, the nine-time champion could have been forgiven for allowing itself a breather before the start of the business end of the season.

Environmental groups are expressing alarm about a sharp increase in fires in Colombia's Amazon region that they blame on people clearing forest to make way for cattle ranches, coca fields and illegal roads.

More than 150 academics and activists from Colombia, Brazil, France and Spain sent a letter to President Ivan Duque on Tuesday urging the Colombian government to take a more aggressive stance against deforestation, using the military to put out the fires, creating economic alternatives for people in the Amazon region and arresting those who finance efforts to clear the forest.

The European Union has criticized a plan by lawmakers in southern Spain to expand irrigation rights for farmers near one of Europe's largest wetlands, arguing that it will further endanger a major wildlife refuge that is already drying up.

The government of the Andalusia region wants to grant water rights to farmers on 1,460 hectares (3,607 acres) of land near the Doñana National Park, which the United Nations cultural agency has designated as a World Heritage site and a biosphere reserve.

Top-ranked Novak Djokovic is on the entry list for the BNP Paribas Open in California, where the Serb would face a vaccine mandate.

Djokovic, who was unvaccinated against COVID-19 as of last month, was detained and eventually deported from Australia for failing to meet that country's strict vaccination requirements. It prevented him from defending his Australian Open title last month.

Twitter's shares jumped in early trading Thursday after it posted strong revenue growth last year and announced a $4 billion share buyback program. That's despite losing money in 2021 and falling short of Wall Street's expectations for user growth in the final quarter of the year.

Revenue increased 37%, to $5.08 billion, compared with 2020. But it reported a net loss of $221 million for the year largely tied to the settlement of a shareholder lawsuit.

U.S. markets were mixed ahead of the opening bell Thursday as investors awaited data on U.S. inflation and employment.

Futures for the Dow Jones Industrial were up a slight 0.2%, while futures for the S&P 500 declined by 0.1%.

Tesla is recalling nearly 579,000 vehicles in the U.S. because a "Boombox" function can play sounds over an external speaker and obscure audible warnings for pedestrians.

The recall is the fourth made public in the last two weeks as U.S. safety regulators increase scrutiny of the nation's largest electric vehicle maker. In two of the recalls, Tesla made decisions that violate federal motor vehicle safety standards, while the others are software errors.

Budvar, the Czech brewer that has been in a long legal dispute with U.S. company Anheuser-Busch over use of the "Budweiser" brand, has registered a record output for the second straight pandemic year.

Budejovicky Budvar NP, a 126-year-old state-owned brewery, said its output rose 4.6% to 1.8 million hectoliters (47.8 million gallons) in 2021, according to preliminary results released on Thursday.

Germany's foreign minister said Thursday that nuclear talks with Iran are entering a "final phase" and that, despite Israeli reservations, a return to a nuclear agreement would make the region safer.

Foreign Minister Annalena Baerbock spoke at a joint press conference in Tel Aviv with her Israeli counterpart, Yair Lapid, during an official visit to Israel.