A 28-year-old woman has died following a collision in Gwynedd, north Wales.
A four-year-old child has been taken to Alder Hey Hospital in Liverpool with what has been described as “life-threatening injuries”.
A woman was also airlifted to Stoke Hospital with serious injuries while two further people were taken to Ysbyty Gwynedd in Bangor with serious injuries.
Emergency services received reports of the crash on the A487 bypass between Felinheli and Caernarfon at around 7pm on Monday.
The four-vehicle incident involved a dark grey Audi A3 saloon, BMW 1 series, Peugeot 208 and a Skoda Octavia.
Sergeant Emlyn Hughes from North Wales Police’s roads policing unit said: “I offer my deepest condolences to the families of the people involved in this tragic incident, which is sadly being investigated as a fatal road traffic collision.
“I am appealing to anyone who was travelling on the A487 bypass between 6.30pm-7pm who witnessed the collision, or may have dashcam footage leading up to it, particularly of the Audi, to get in touch with police.
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“If you have any information, please contact police via webchat or by calling 101, quoting reference 23000283204.”
The road was closed for several hours after the crash but was re-opened shortly before 7am on Tuesday.
North Wales Police say the woman’s family and the coroner have been informed.