Officers were chasing a sliver BMW when it veered off a bridge and down an embankment near Abergele on Saturday morning.
Passenger killed in fatal Llandudno crash
Police have confirmed a woman who died in a crash in Llandudno on Friday was Beryl Rhodes from Llandudno Junction.
The 69-year-old was a passenger in a black Renault which crashed on a bend on the road towards Penrhyn Bay on Friday evening.
The female driver was taken to hospital with serious injuries, where she is still being treated.
Beryl received support from Anheddau Cyf, and it's understood the driver was an employee of the charity.
Janetta Jones, CEO Anheddau Cyf said: "We’re shocked and saddened by the death of Beryl in this tragic accident.
"Beryl was a lovely lady who had lots of friends and enjoyed attending a local day service.
"She was approaching her 70th birthday this weekend and was busy organising how she was going to spend her special day.
"She will be sadly missed by everyone who knew her.
"Anheddau is cooperating with North Wales Police who have opened an investigation into the incident."
Sergeant Jason Diamond from the Roads Policing Unit said: "We are continuing to appeal for witnesses, and are keen to speak to anyone who may have been in the Gloddaeth Lane area, between 5:30pm and 9:30pm on Friday."
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