Two women have been arrested on suspicion of assisting an offender as part of the investigation into the murder of Merseyside police officer PC Simon Phillips. The officer was killed in a hit and run incident in Wallasey, Wirral.
The pair, aged 19 and 34, both from Wallasey, are being questioned by police following the death of the on-duty officer who was killed attempting to stop a stolen red Mitsubishi Challenger L200 using a "stinger" device at the central reservation in Wallasey Dock North Road, Wirral.
Two men, aged 18 and 30, from the Oxton and Wallasey areas of Wirral, were previously arrested on suspicion of murder and remain in police custody.
Detective Chief Superintendent Paul Richardson, said: "I would like to thank the public for their overwhelming support. Since the investigation was launched yesterday we have been inundated with calls from members of the public and, as a result, we are following up a number of positive lines of inquiry.
"From the hundreds of supporting and caring comments on social media and media websites it is obvious that there is overwhelming support for the police and that the public appreciate the work undertaken by officers like PC Phillips to keep their communities safe.
"I would like to appeal to any members of the public who have any information which could help us with the investigation to come forward. You may not think that the information you have will mean that much, but for us that information could be the vital piece of the jigsaw we need and is essential in helping us to build up a picture in relation to what happened on the night."
Anyone who can help the police investigation team is asked to call the Matrix Serious Organised Crime team on 0800 230 0600, or Crimestoppers on 0800 555 111.