U.S. military officials say there could have been more civilian casualties than initially thought in the raid that killed the top Islamic State leader in Syria last week, but they believe any such deaths were caused by the militant's suicide bomb and were not at the hands of American forces.

Laying out a chronology of the raid by special operations forces, officials also said they cannot be certain that Abu Ibrahim al-Hashimi al-Qurayshi detonated the bomb that killed him and his family at his home in the sleepy village of Atmeh near the Turkish border.

Thousands of cars and motorbikes paraded in celebration of the 43rd anniversary of Iran's 1979 Islamic Revolution on Friday, although fewer pedestrians were out for a second straight year due to concerns over the coronavirus pandemic.

In the capital Tehran, processions started out from several points, converging on the usual meetup point at Azadi Square. Later in the day, President Ebrahim Raisi will give at speech during Friday prayers at a mosque.

A court in a southern Indian state told students on Thursday not to wear any religious clothing until it delivers a verdict on petitions seeking to overturn a ban on hijabs, headscarves used by Muslim women.

The court in Karnataka state is considering petitions filed by students challenging a ban on hijabs that some schools have implemented in recent weeks.

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%.