Share A police cordon was in place and forensic teams have been working around a blue sheet in the middle of the street. Two air ambulances were spotted landing in Compton Park, witnesses said. Detective Chief Inspector Simon Vaughan, of Merseyside Police, said: 'An investigation is underway following this tragic incident and we are keen to speak to anyone with information which could assist our enquiries. 'If you were in the area this evening, saw or heard any suspicious behaviour, or have any CCTV or dashcam footage, please come forward. Any information, no matter how small, could prove vital to our investigation.'