The A3 has been closed between Tolworth and Hook after two incidents and a skip on fire.
Surrey Police tweeted at 4.51pm: "#A3 N/B Hook/Tolworth CLOSED x2 collisions and a skip on the back of a lorry on fire! Assisting Metpol. Traffic building #avoid"
It is understood that one of the accidents is a motorbike crash near Tolworth with a person being treated.
A witness to the aftermath said: "All I could see was the bare legs and I got to guess it was a woman. I could see L plates."
He said: "The other incident was a bit closer to the Ace of Spades northbound, a skip caught fire. It is being towed and the Fire Brigade came."
Two lanes on the A3 were also closed this morning after an accident at New Malden.
For traffic and travel updates visit www.surreycomet.co.uk/li/traffic_and_travel.in.Kingston%20Upon%20Thames
More to follow.