Bob Baffert, a Hall of Fame trainer, denied wrongdoing on Sunday after the 2021 Kentucky Derby winner, Medina Spirit, failed a drug test after the race. Mr. Baffert's horses have failed five tests in just over a year.

A car bombing killed at least 50 people and wounded more than 100 outside a high school in Kabul on Saturday while girls were leaving class. Afghan officials placed blame on the Taliban, though they have denied responsibility.

In Britain, Prime Minister Boris Johnson's Conservative Party won a special election for a parliamentary seat in the town of Hartlepool, which had been held by the opposition Labour Party.

At a United Nations Security Council meeting on Friday, with counterparts from both China and Russia, Secretary of State Antony J. Blinken said that the U.S. would not tolerate nations that break international rules, including the violation of human rights.

The House Committee on Financial Services held a virtual hearing on short-sellers, social media, and retail investors. The hearing came in response to the March surge in Gamestop stock and the market volatility that ensued.

A Facebook-appointed oversight board ruled to uphold the social network's ban of former President Donald J. Trump at a panel on Wednesday.

President Biden delivers remarks on the coronavirus response and the current state of vaccinations in the United States.

During a visit to a community college in Norfolk, Va., President Biden outlined his tax plan, which emphasizes child care benefits as well as an increase in taxes on wealthy individuals and corporations in order to benefit community colleges.

On Sunday, the United States delivered the third of six aid shipments to New Delhi, including 1,000 oxygen cylinders. Britain donated more than 400 oxygen concentrators, and France sent eight oxygen generators, each of which can serve 250 hospitalized patients.

Three people died and more than two dozen were hospitalized after a 40-foot boat being used to smuggle migrants broke apart on a reef off the coast of San Diego Sunday morning, the San Diego Fire-Rescue Department said.