Officers are currently on Picton Street in Wavertree, outside The Whistle Stop cafe, where there is a cordon.  Eyewitnesses described the scene as a “pandemonium” shortly after 2 p.m. 

A photo posted on social media shows five police vehicles, including two trucks, at the scene. Scientific support is also available. We will bring you the latest updates. For the latest news and breaking news visit liverpoolecho.co.uk/news Get all the great headlines, photos, analysis, opinions and videos about the stories that matter to you. Follow us on Twitter @LivECHONews – the official Twitter account of Liverpool ECHO – real news in real time. We’re also on Facebook / theliverpoolecho – the news, features, videos and photos you need to see all day from Liverpool ECHO.