Four Australian police officers were killed in a multi-car crash on a Melbourne highway on Wednesday. Two officers had pulled over a speeding Porsche driver on the Eastern Freeway. They called for backup and two more officers arrived at the scene. A refrigeration truck then plowed into the police vehicles, killing the four officers. The driver of the sports car fled the scene on foot. Victoria police commissioner Graham Ashton provided an account of the events at a press conference, describing it as a "very tragic night." He said police are working to determine what caused the trailer truck to crash into the officers. The truck driver was taken to hospital for treatment. The police commissioner said he "strongly" recommends that the driver of the speeding Porsche proceed to the nearest police station. #RIP

A man is tested for coronavirus at a Los Angeles fire department testing station for the homeless on Skid Row, in Los Angeles, California. REUTERS/Lucy Nicholson

@NCA_UK National Crime Agency (NCA)

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Police chase for a drunk driver, Syzran city, Russia.