Two horses have been killed and four people seriously injured in a road accident in Surrey.

The A3 southbound at Esher was closed after the collision at around 3.40am yesterday morning (Wednesday, 16 December).

“Four vehicles, a grey BMW, a red Vauxhall Zafira, Citroen van and a BMW motorcycle transporting blood, collided with two horses,” read a statement from Surrey Police released this morning.

“Four people were taken to St Georges Hospital in Tooting for treatment to serious injuries. The two horses died at the location.

“Officers carried out enquiries to identify the recipient of the blood being carried by the motorcyclist and were able to deliver it successfully to Frimley Park Hospital.”

The accident happened between the Hook Underpass and Esher Common.

Drivers were still being advised to find alternative routes at around 5.30am. By 9am the northbound carriageway was reopened.

According to local press reports one woman involved in the accident suffered “life threatening injuries” in the crash.

Another man, reportedly in his 30s suffered head injuries, as did the driver of the motorbike — a man in his 50s.

South East Coast Ambulance Service attended the crash.

Two other people were treated for minor injuries at the site.

Anyone who witnessed the collision or the events surrounding it is urged to contact Surrey Police collision 01483 639922 quoting reference P15320944