A 29-year-old man remains in police custody on suspicion of dangerous driving, driving with an unsecured load and causing danger to other roads users, after an accident on the A34 near Whitchurch last night.
It is understood that a car transporter which was being towed by a recovery vehicle on the northbound carriageway came free and crashed through the central reservation shedding its load in the process.
The accident has caused severe disruption to travel on the A34 this morning.
Hampshire Police say the transporter and vehicles have been cleared away but the road is likely to remain closed for several hours while repairs are done to the road surface.
After the incident on Monday night, Hampshire Police released news updates on its Twitter feed as events unfolded:
Following the accident the Highways Agency issued a statement about how long they expected the repair work to take.
However, this morning the full extent of the damage has become clear. A spokesperson from the Highway Agency has confirmed that the repair work underway involves mending 100 metres of the road barrier as well as resurfacing work on the road itself. She said the work is unlikely to be fnished before early afternoon.