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The Powerball lottery jackpot has reached $700 million, the second-highest jackpot in US history...

On “America's Got Talent,” an “insanely dangerous” stunt goes completely wrong, and in the aftermath, Mel B storms off the set.

A Milwaukee high school student has been caught on video beating up his teacher in the middle of class, police said. The shocking cell phone footage captures the moment the 16-year-old lunges at his teacher, punching him and knocking him to the ground, and then continuing the beating. The South Division High School student and teacher can be heard yelling unintelligibly at each other just seconds before the first punch is thrown. Police say the teacher’s injuries were not life-threatening and that they arrested the student, who could face possible charges of battery, local station Fox 6 reported. A Milwaukee schools spokesman said the district is cooperating with police.

An estimated 900 stray dogs live in the Chernobyl exclusion zone, many of them likely the descendants of dogs left behind following the mass evacuation of residents in the aftermath of the 1986 nuclear disaster. Volunteers, including veterinarians and radiation experts from around the world, are participating in an initiative called the Dogs of Chernobyl, launched by the nonprofit Clean Futures Fund. Participants capture the dogs, study their radiation exposure, vaccinate them against parasites and diseases including rabies, tag the dogs and release them again into the exclusion zone. Some dogs are also being outfitted with special collars equipped with radiation sensors and GPS receivers in order to map radiation levels across the zone. (Getty Images) Photography by Sean Gallup /Getty Images See more news-related photo galleries and follow us on Yahoo News Photo Twitter and Tumblr.

The Donald Trump presidency will end with his resignation, and it will come “suddenly,” with little warning, according to political commentator Keith Olbermann. Speaking on the latest edition of his GQ series “The Resistance” on Tuesday, Olbermann, a former MSNBC host, said he believed that Trump would call it quits when special counsel Robert Mueller’s investigation into his campaign’s links to Russia grow too close for comfort. Related: Will Trump resign?

"Me, personally, I think she was on meth," said Bullock County Sherrif Raymond Rodgers.