aos in the Australian City of Melbourne. Pedestrians strewn along downtown Flinders Street after a vehicle plowed through a crowded intersection full of Christmas shoppers, at least 19 people injured. But police say it probably wasn't an act of terrorism.>> We don't at this time have any evidence or any intelligence to indicate there's a connection with terrorism.
And I just wanna reiterate that. At this time we don't have any evidence or intelligence to indicate a connection with terrorism. Having said that, however, we continue to support this investigation with our counterterrorism command to ensure that there isn't that connection, and that there is no ongoing threat.
>> Police say they have detained the 32-year-old driver. He's reported to be an Australian man of Afghan descent, who has a history of mental health issues, as well as assault and drug use. Eyewitnesses told Reuters the car was traveling at high speeds as it drove into the intersection, hitting one person after another.
Four of those injured are in critical condition, including a pre-school aged boy who suffered a head injury. Police also detained a 24-year-old man at the scene who was filming the incident and carrying a bag with knives. But they said it was quite probable that he was not involved.
The scene has chilling echoes of a similar event in January when four people were killed, although terrorism was ruled out in that case, too. Australia's national threat level has been set at high since 2015. Security officials cite the likelihood of attacks by Australians radicalized in Iraq and Syria.