Highways England said that congestion is affecting the A1M from Junction 43 (Leeds) to Junction 44 (Rothwell).
There is also congestion on the A64 around the Tadcaster area of York.
A spokesman said: "#A1M J43 #Leeds to J44 #Rothwell northbound we are picking up congestion in this area. Please note there is also congestion on the #A64 around the area of #Tadcaster and #York
"Please plan ahead and allow extra time for your journey."
Elsewhere, police are currently attending reports of a pedestrian on the slip road of the M621 in Leeds.
