Emergency services were called to a crash involving two vehicles near Irchester.
Firefighters, police and the ambulance service went to the accident on the B569 Wollaston Road in Irchester just after 2pm today (Friday).
It is believed that two vehicles were involved and one car ended up on its side.
The road has been closed in both directions at the Gipsy Lane junction, leading to some delays so motorists are advised to avoid the area if possible.
It is not yet known if there are any injuries.