A 16-year-old Lincoln boy has died in hospital on Saturday night from injuries sustained in a three-car collision near Alford on Good Friday.
As previously reported, a 70-year-old woman from Mablethorpe also died in the April 18 incident, while six other people remain in serious condition in hospital.
Three other 17-year-old boys from Lincoln were seriously injured in the crash and are being treated in hospitals in Hull, Grimsby and Boston.
They were in a black Vauxhall Corsa which was in collision with a red Ford C-Max and a white Mercedes van on the A1104 at Snape Hill, Saleby near Alford.
The driver of the Ford C-Max, a 72-year-old man from Mablethorpe is still in a serious condition in hospital in Nottingham.
The 70-year-old woman from Mablethorpe who died in the incident was a front seat passenger in the C-Max, while an 11-year-old boy who was also in the car, is treated for serious injuries in Hull, along with another female rear seat passenger.
The 50-year-old driver of the White Mercedes van was not injured.