Updated 11.10am: The A1 southbound sliproad of the A6121 junction has now reopened following a crash earlier today (Wednesday).
Emergency services were called to a two vehicle collision at the A6121 junction near Tinwell at about 7.20am.
No-one was injured in the incident but the sliproad was closed for several hours while the scene was cleared.
Emergency services were also called to a crash between a lorry and two cars at the A43 junction near Wothorpe at about 7.45am.
The southbound carriageway has reopened and traffic has cleared.
Drivers had experienced long delays of up to 45 minutes.