Russia says its air defenses intercepted at least 24 Ukrainian drones a day after it launched its largest drone strike on the Ukrainian capital of the war.

The achievement marks the first time an artificial intelligence system has been able to regularly beat humans in a real-world competition and could lead to better drones in the future.

Explosions were reported in several districts of Moscow and outlying regions of the city Tuesday as Russia launched a pre-dawn air raid on Ukraine's capital Tuesday that killed at least one person.

The U.S. military said a Russian fighter jet conducting "an unsafe and unprofessional intercept" struck the propeller of a U.S. drone over the Black Sea, causing U.S. forces to bring it down.

Axon, which sells Tasers and police body cameras, floated the idea of a new police drone product last year to its AI ethics board, which quickly panned the idea as a dangerous fantasy.

This year's best pictures include two friends sunbathing on giant shards of ice in Kazakhstan, workers at a red chili factory in Bangladesh and a white mangrove forest in Vietnam.

An image that seems to threaten former President Donald Trump has prompted Twitter to deactivate an account linked to Ayatollah Ali Khamenei. The image also appears on Khameini's website.

Drone footage captures the moment a more-than-6-foot shark circles a surfer, coming only inches away from him. It's possible that the drone noise scared the animal away.