JP Morgan CEO Jamie Dimon and a Bitcoin. Photos: AP

JP Morgan CEO Jamie Dimon slammed bitcoin Tuesday, calling the digital currency "a fraud," per CNBC. He said it's "worse than tulip bulbs” — a reference to the 17th century economic bubble.

"It won't end well. Someone is going to get killed," Dimon said at a Barclays banking conference. "Currencies have legal support. It will blow up."

Why it matters: Dimon has been pessimistic about bitcoin and other cryptocurrencies in the past, and has argued that there will never be a currency "that gets around government controls." And Dimon isn't the only critic. Other analysts have argued that bitcoin is nothing more than a fad with no value, and have warned that the currency's current market success could create an economic bubble.

Market reaction: Bitcoin stock fell roughly 0.8% after Dimon's comments.

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Unrest in Philadelphia after fatal police shooting of Black man

Demonstrators rally on Tuesday near the location where Walter Wallace was killed by two police officers in Philadelphia, Pennsylvania. Photo: Mark Makela/Getty Images

The Pennsylvania National Guard was mobilized Tuesday during a tense second night of protests in Philadelphia over the fatal police shooting of Walter Wallace, a 27-year-old Black man.

Driving the news: Philadelphia Jim Kenney (D) and Police Commissioner Danielle Outlaw said in a joint statement Monday that police were launching a "full investigation" to answer questions that arose from video that captured part of the incident with police.

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Louisiana braces for 3rd hurricane in 2 months as Tropical Storm Zeta nears

Municipality workers clean the streets of garbage in Playa del Carmen, Mexico, on Tuesday that was left by Zeta, which struck the Yucatan Peninsula as a Category 1 Hurricane a day earlier — causing no major damage to infrastructure. Photo: Medios y Media/Getty Images

Tropical Storm Zeta is expected to strengthen back into a hurricane and bring dangerous storm surge conditions to parts of the northern Gulf Coast on Wednesday, per the National Hurricane Center.

The state of play: Louisiana Gov. John Bel Edwards (D) requested a pre-landfall Federal Declaration of Emergency in a letter to President Trump on Tuesday, ahead of the storm's expected arrival south of New Orleans.