An Italian soldier in Milan was stabbed in the neck and in the back with a pair of scissors by a man. He was arrested after the stabbing, which was described as a terrorist attack linked to Islamic extremism. The soldier survived the attack. (TGCOM24)
Italian champion speedboat designer and racer Fabio Buzzi and two other racers are killed when their boat, attempting to set a new Monte Carlo-to-Venice record in the Assonautica Italiana race, crashes into a sunken, flood-barrier dam near the finish line. A fourth racer is in hospital with serious injuries. (BBC News)(Il Globo)
An anonymous U.S. official says the United States is certain that the attack was launched from Iranian territory and that it involved cruise missiles. (The Daily Star)
The UK Supreme Court begins considering the lawfulness of Prime MinisterBoris Johnson's prorogation of Parliament. It is jointly considering two appeals. One is against a ruling by the High Court under English law that the issue is solely a matter for the Prime Minister and one the courts do not have jurisdiction over. The other is against a ruling by the Court of Session under Scots law declaring the suspension unlawful and a nullity, and requiring Johnson to recall Parliament. (BBC News)
The Venezuelan secret service releases National Assembly Vice President Edgar Zambrano. The Nicolás Maduro government says his release comes after a partial compromise with members of Juan Guaidó's opposition government to live peacefully; Guaidó says the Maduro government has been forced to release him under international human rights pressure. (BBC News)
Following the attack, which was livestreamed on Facebook, the social network teams up with the Metropolitan Police of London. Facebook is providing bodycams to the force's firearms officers to help train its artificial intelligence systems, enabling it to automatically detect and remove live first-person footage of violent incidents. The company says it previously had insufficient footage for its software to suitably match fresh footage with, and has been criticised for its role in the shooting. Instagram say they will also participate. (The Guardian)