Detectives have named a man and woman who died following a motorcycle crash on the A1 Western Bypass near Swalwell on Friday night.
They are Matthew David Lee aged 21, from Ingleby Barwick in Stockton on Tees, and his girlfriend Marie Brown aged 19, from Middlesbrough.
Their families have been informed.
– Statement from Matthew David Lee's family
Matthew was a kind, generous and thoughtful boy, who was full of life and enthusiasm.
He was a hard worker who had recently completed his apprenticeship as a steel fabricator and welder – passing with flying colours.
He loved his motorcycles and was a member of a club called Teesside Bikers. Every day when he finished work he would spend his afternoons out on his motorbike (weather permitting). He was also passionate about movies and loved going to the cinema.
He was a loving son and brother and it is hard to describe how much we will miss his cheeky grin and having him with us.
– Statement from Marie Brown's family
It is devastating to lose Marie like this when all her life should have been ahead of her.
She was a bright, lovely, popular girl and she will be missed by everyone who knew her.
Sergeant Steve Templeman of the Road Safety Unit said: "We are still trying to piece together the events leading up to the collision and we need to speak to anyone who saw the red Triumph motorcycle travelling south from the direction of Denton Burn, in the moments leading up to the collision."
Police are continuing to appeal for anyone who witnessed the collision or saw the motorcycle before the collision to contact them.