PKR de facto leader was left "shaken up" following an accident when a prison's department vehicle convoy was involved in an accident.

According to his lawyer R Sivarasa, the accident took place at 12.30pm near Saujana Utama, Sungai Buloh en route to the Sungai Buloh prison from the Kuala Lumpur general hospital.

The vehicle which Anwar was travelling in was struck from behind by an escort vehicle.

"The prison officer driving the car carrying Anwar had to brake sharply to avoid an oncoming vehicle (resulting in a collision with) the escort car (trailing) behind," said Sivarasa in a statement today.

He said Anwar did not suffer any serious physical injuries but was administered painkillers after being examined by prison medical staff.

The lawyer added that Health Ministry deputy director-general Dr S Jeyaindran was scheduled to visit Anwar this evening to assess if further treatment was required.

Anwar was admitted on Sept 19 due to unstable blood pressure.