UPDATE (12:43 p.m.) - Caltrans says all lanes of the highway are now open.
(5:18 a.m.) - California Highway Patrol is responding to a semi-truck crash Thursday morning.
The crash happened at around 4:40 a.m. along northbound Highway 101 just north of the Jonata off-ramp between Buellton and Los Alamos.
According to CHP the crash happened between a semi-truck and a box truck blocking the number one and two lanes.
CHP says the box truck is off the roadway and approximately 100 feet down an embankment.
Crews are responding to the scene in order to clear the roadway and get the truck out of the embankment.
As of 5:15 a.m. CHP says no injuries were reported. Drivers can expect delays in the area throughout Thursday morning.