NEW YORK — Twelve news organizations urged presumptive presidential nominees President Joe Biden and former President Donald Trump on Sunday to agree to debates, saying in a letter they were a “rich tradition” that have been part of every general election campaign since 1976.

While Trump, who didn’t participate in debates for the GOP nomination, has indicated a willingness to take on his 2020 rival, the Democratic president has not committed to debating him again. Invitations have not been formally issued, but the news organizations said it was not too early for each campaign to say publicly that it will participate in the three presidential and one vice presidential forums set by the nonpartisan Commission on Presidential Debates.

“If there is one thing Americans can agree on during this polarized time, it is that the stakes of this election are exceptionally high,” they said in a joint statement. “Amidst that backdrop, there is simply no substitute for the candidates debating with each other, and before the American people, their visions for the future of our nation.”

ABC, CBS, CNN, Fox, PBS, NBC, NPR and The Associated Press signed the letter.

Biden and Trump debated twice in 2020. A third debate was canceled after Trump, then president, tested positive for COVID-19 and would not debate remotely.

Asked March 8 whether he would commit to a debate with Trump, Biden said “it depends on his behavior.” Biden was visibly miffed by his opponent in the freewheeling first 2020 debate, at one point saying: “Will you shut up?”

Trump campaign managers Susie Wiles and Chris LaCivita said in a letter this past week that “we have already indicated President Trump is willing to debate anytime, any place and anywhere — and the time to start these debates is now.”

The Biden campaign declined comment on the letter. There was no immediate response from the Trump campaign.

Anti-abortion march: Thousands of Polish opponents of abortion marched Sunday in Warsaw to protest recent steps by the new government to liberalize the predominantly Catholic nation’s strict laws and allow termination of pregnancy until the 12th week.

Many participants were pushing strollers with children, while others were carrying white-and-red national flags or posters representing a fetus in the womb.

Poland’s Catholic Church called for Sunday to be a day of prayer “in defense of conceived life” and supported the march, organized by an anti-abortion movement.

Poland’s parliament, which is dominated by the liberal and pro-European Union ruling coalition, voted last week to approve further detailed work on four proposals to lift the near-ban on abortions.

The procedure, which could take weeks or even months, is expected to be eventually rejected by conservative President Andrzej Duda, whose term runs for another year.

The nation of 38 million is seeking ways to boost the birth rate, which is at 1.2 per woman — among the lowest in the European Union. Poland’s society is aging and shrinking, facts that the previous right-wing government used among its arguments for toughening the abortion law.

Abortions are allowed in cases of rape or incest or if the woman’s life or health is at risk. Women attempting an abortion themselves are not penalized, but anyone assisting them can face up to three years in prison.

Chancellor in China: German Chancellor Olaf Scholz arrived in China on Sunday for a three-day visit focused on the increasingly tense economic relationship between the sides and differences over Russia’s invasion of Ukraine.

Chinese state broadcaster CCTV showed Scholz descending from his plane and leaving in a motorcade but did not carry any comments made to the welcoming delegation.

Scholz’s first destination was the industrial hub of Chongqing, where he and his delegation of ministers and business leaders were to visit a partially German-funded company and other sites in the vast city, which is a production base for China’s auto and other industries.

Scholz is also scheduled to visit the financial hub of Shanghai , then travel to the capital, Beijing, to meet with Chinese leader Xi Jinping and Premier Li Qiang.

Plea on stolen remains: The wife of a former Harvard Medical School morgue manager has pleaded guilty to a federal charge after investigators said she shipped stolen human body parts — including hands, feet and heads — to buyers.

Denise Lodge, 64, of Goffstown, New Hampshire, pleaded guilty Friday in U.S. District Court in the Middle District of Pennsylvania to a charge of interstate transportation of stolen goods, according to court records.

Federal prosecutors announced charges last year against Lodge, her husband Cedric and five other people in an alleged scheme in which a nationwide network of people bought and sold human remains stolen from Harvard and a mortuary in Arkansas.

Prosecutors said Denise Lodge negotiated online sales of a number of items between 2018 and March 2020, including two dozen hands, two feet, nine spines, portions of skulls, five dissected human faces and two dissected heads, PennLive.com reported.

Authorities said dissected portions of cadavers donated to the school were taken between 2018 and early 2023 without the school’s knowledge or permission.

Lodge’s attorney, Hope Lefeber, told WBUR in an interview in February that her client’s husband “was doing this and she just kind of went along with it. What happened here is wrong,” but no one lost money and the matter was “more of a moral and ethical dilemma ... than a criminal case.”

Bodies donated to Harvard Medical School are used for education, teaching or research. Once they are no longer needed, the cadavers are usually cremated and the ashes are returned to the donor’s family or buried in a cemetery.

14 killed in landslides: Torrential rains triggered landslides on Indonesia’s Sulawesi island, killing at least 14 people and leaving three missing, officials said Sunday.

Mud fell from surrounding hills onto four houses just before midnight Saturday in the Tana Toraja district of South Sulawesi province. Downed communications lines, bad weather and unstable soil were hampering the rescue efforts, local police Chief Gunardi Muhari said.

Seasonal downpours cause frequent landslides and floods in Indonesia, a chain of 17,000 islands where millions of people live in mountainous areas or in fertile flood plains.