Australians began voting Tuesday in general elections as the death of Pope Francis led to a cancellation of campaign events.

Polling stations opened to voters who, for a variety of reasons, will be unable to vote on May 3. Around half the votes are expected to be cast before then.

Former champion Novak Djokovic has returned to the Madrid Open for the first time in three years in hopes of achieving his 100th tour-level title.

Djokovic is seeded fourth in the same half of the draw as second-seeded Carlos Alcaraz, the home favorite who arrives at the Caja Magica this week with fitness concerns after reaching consecutive clay-court finals.

The infighting and backstabbing that plagued President Donald Trump's first term have returned as a threat to his second, with deepening fissures over trade, national security and questions of personal loyalty.

The latest turmoil threatens to engulf the Pentagon, where Defense Secretary Pete Hegseth has pushed out top advisers and faces fresh controversy over sharing sensitive information about airstrikes in Yemen outside of classified channels. A former Pentagon spokesperson who was ousted last week wrote in Politico that Trump should fire Hegseth for presiding over a "full-blown meltdown."

Israeli police on Tuesday were scouring the waters off the country's Mediterranean coast for a swimmer who they fear may have been attacked by a shark, in an area that for decades has seen close encounters between marine predators and beachgoers who sometimes seek them out.

A shiver of endangered dusky and sandbar sharks has been swimming close to the area for years, attracting onlookers who approach the sharks and drawing pleas from conservation groups for authorities to separate people from the wild animals.

The death of Pope Francis has sent shockwaves through Iraq's Christian community, where his presence once brought hope after one of the darkest chapters in the country's recent history.

His 2021 visit to Iraq, the first ever by a pope, came after years of conflict and displacement. Just a few years before that, many Iraqi Christians had fled their homes as Islamic State militants swept across the country.

Negotiations between Iran and the United States over Tehran's rapidly advancing nuclear program will move Wednesday to what's known as the "expert level" — a sign analysts say shows that the talks are moving forward rapidly.

However, experts not involved in the talks who spoke with The Associated Press warn that this doesn't necessarily signal a deal is imminent. Instead, it means that the talks between Iranian Foreign Minister Abbas Araghchi and U.S. Mideast envoy Steve Witkoff haven't broken down at what likely is the top-level trade — Tehran limiting its atomic program in exchange for the lifting of economic sanctions.

In the last 18 months of his life, Pope Francis had a frequent evening ritual: He would call the lone Catholic church in the Gaza Strip to see how people huddled inside were coping with a devastating war.

That small act of compassion made a big impression on Gaza's tiny Christian community and was why he was remembered at his death Monday as a beloved father figure in the beleaguered territory.

Hackers linked to Russia's government launched a cyberattack last spring against municipal water plants in rural Texas. At one plant in Muleshoe, population 5,000, water began to overflow. Officials had to unplug the system and run the plant manually.

The hackers weren't trying to taint the water supply. They didn't ask for a ransom. Authorities determined the intrusion was designed to test the vulnerabilities of America's public infrastructure. It was also a warning: In the 21st century, it takes more than oceans and an army to keep the United States safe.

The head of Israel's internal security service on Monday accused Prime Minister Benjamin Netanyahu of trying to exploit the power of the agency for political and personal gain through a litany of improper demands. His comments deepened a showdown between the two men that has divided the nation.

In a submission to the Supreme Court, Shin Bet chief Ronen Bar wrote that he refused a request from Netanyahu to identify Israeli anti-government protesters and surveil their financial backers.

Few moments in Pope Francis' papacy better exemplify his understanding of climate change and the need to address it than the rain-soaked Mass he celebrated in Tacloban, Philippines, in 2015.

Wearing one of the cheap plastic yellow ponchos that were handed out to the faithful, Francis experienced first-hand the type of freak, extreme storms that scientists blame on global warming and are increasingly striking vulnerable, low-lying islands.