Two drivers and a motorcyclist killed in a series of accidents over the space of just two days have been identified.

Robert Murrell, 33, from Southmoor, near Abingdon, was killed on Sunday while he was riding his black Yamaha FZ Series motorbike along the A420 in south Oxfordshire.

He had collided with a blue Peugeot 106 which was turning on to the dual carriageway from the Oaksmere road from Appleton.

Mr Murrell, a builder, was thrown from his bike and the car ended up on its roof. The driver and passenger were taken to Oxford's John Radcliffe hospital with life threatening injuries.

Mr Murrell's partner, who lived with him in Worcester Place, was being comforted by relatives last night and was too upset to talk.

A 23-year-old woman has been named as the driver killed when her car left the road near Nuffield on Monday morning.

Anne-Marie Moore, of Digbury Lane in Nettlebed, was travelling from the direction of Nuffield towards the A4130 when her Ford Ka hit a tree near the turn off for the Huntercombe Golf Club.

No other cars are thought to have been involved.

Later the same day, a van driver was killed when his vehicle collided with another van on the A418 near Thame.

Anthony Turner, 52, from Bedfordshire, was driving a white Mercedes 208 towards Thame when he was in- volved in a head-on collision with a blue Isuzu van travelling in the opposite direction.

The other driver had to be cut from the vehicle and was air lifted to the John Radcliffe Hospital with multiple injuries.

Tim Wiseman, spokesman for Thames Valley Police, said: "It has been a challenging few days, with a number of extremely serious incidents, which have tragically meant the loss of several lives.

"With all serious collisions, thorough investigations are carried out, including examinations of the vehicles involved and the roads they were travelling on.

"However, witness information is just as important to these investigations and we urgently require any information that people may have if they witnessed the collisions or saw the vehicles driving in the area before the incidents occurred."

There were 2,158 collisions on the county's roads between April 2005 and March 2006.

The majority of those crashes resulted in slight injuries, but 34 of the collisions resulted in 41 deaths and 242 led to 292 people being seriously injured.