Rebels bikie shot, taxi driver injured in daylight shooting

A cab driver has been caught up in the crossfire when a high-ranking Rebels bikie was shot in an apparent targeted attack.

Christopher Rhymer was shot four times, twice in the stomach, while in a taxi in Riverstone in Sydney's north west about 9.30 this morning.

The car was travelling down Junction Road, followed by a dark ute, before shots rang out.

Witness Jadjid Singh said the alleged gunman shot "four or five rounds" before getting back in the ute.

Police allege Rymer had been picked up from an address in the city's west before stopping at a home.

The dark ute was seen speeding away.

The taxi driver drove himself and the passenger to Hawkesbury Hospital.

Police later found the burnt-out ute at nearby Beaumont Hills.

Rymer has undergone emergency surgery but his injuries are still potentially life-threatening.

"You fire enough shots at someone you want to kill and you hit someone innocent and it is really unacceptable," Detective Superintendent Rob Critchlow from NSW Police said today.

"People in Sydney should be able to go about their lives without some fool trying to shoot another fool".

One line of investigation is whether Rymer was shot by rival gang the Lone Wolves as police believe there have been disagreements between the groups.

The cab driver will make a full recovery.