A taxi explosion in Liverpool on Sunday morning has now been declared as a terrorist incident.
Police confirmed the blast was officially being treated as terrorism at a press conference today but said the motivation for the attack is "yet to be understood".
The blast killed one and injured a taxi driver at 10.59am on Sunday outside of Liverpool Women's Hospital.
The taxi driver David Perry, who has since been described as a hero, has since been released from hospital following treatment for his injuries.
It is understood the passenger in the car built an improvised explosion device within the vehicle before the blast.
Streets in the city remain cordoned off today as enquiries continue to understand the motivation behind the attack.
Assistant Chief Constable Russ Jackson of Counter Terrorism North West said: "It is not clear what the motivation for this incident is.
"Our enquiries indicate that an improvised explosive device has been manufactured and our assumption so far is that this was built by the passenger in the taxi.
"The reason why he then took it to the Women's Hospital is unknown, as is the reason for its sudden explosion.
"We are of course aware that there were Remembrance events just a short distance away from the hospital and that the ignition occurred shortly before 11am.
"We cannot at this time draw any connection with this but it is a line of inquiry we are pursuing.
"Although, the motivation for this incident is yet to be understood, given all the circumstances, it has been declared a terrorist incident and counter-terrorism policing are continuing with the investigation.
"Our enquiries will now continue to seek to understand how the device was built, the motivation for the incident and to understand if anyone else was involved in it."
So far four men have been arrested under the Terrorism Act in connection with the incident.
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