Update 4.15pm, Wednesday, September 13.
A Lincolnshire Police spokesperson said: “We are asking for any witnesses who have seen a white Tanker driving on Cheal Lane at around 1pm, or the collision, to come forward.
“The incident involved a white Tanker which was containing non-hazardous contents.
“Roads are still closed between the Beach Bank junction and the Northgate junction, and people are urged to avoid the area for the next few hours.
“Anyone with any information should contact 101 quoting incident 236 of September 13.”
Lincolnshire Police have closed several roads north of Spalding after a crash early this afternoon described by the force as “serious”.
Road closures are in place at the Beach Bank junction and Northgate junction near Cheal Lane after the crash at 1.09pm on Wednesday, September 13.
The roads are expected to be closed for another three to four hours.
Anyone travelling through the area should follow the diversions and avoid the area if possible.