Senior investigating officer for the counter-terror operation, Detective Chief Inspector Andrew Meeks, said enquiries are very much ongoing.
“We believe he lived at the Sutcliffe Street address for some time and had recently rented the Rutland Avenue address. Our focus is the Rutland Avenue address where we have continued to recover significant items,” he said, appealing for further information from the public.
The investigation continues to move at a fast pace with investigative teams working throughout the night,” said Assistant Chief Constable Russ Jackson.
“We have made significant progress since Sunday morning and have a much greater understanding of the component parts of the device, how they were obtained and how the parts are likely to have been assembled..
“There is a considerable way to go to understand how this incident was planned, prepared for and how it happened. We are gaining a better understanding by the hour but it is likely to be some time, perhaps many weeks until we are confident on our understanding of what has taken place,” he added.
The explosion, which took place outside the Liverpool Women’s Hospital on Sunday, resulted in the UK’s terror threat level being raised from substantial to severe – which means a terror attack is highly likely.
Speaking at a Downing Street briefing on Monday, British Prime Minister Boris Johnson said the blast was a “stark reminder” to the public to remain vigilant.
“The British people will never be cowed by terrorism, we will never give in to those who seek to divide us with senseless acts of violence. And our freedoms and our way of life will always prevail,” he said.