An 18-year-old bus passenger has pleaded guilty to attacking a Sydney driver with a knife in the city's west.
Emergency services were called to Blacktown railway station about 1.30pm on Saturday where they found the bus driver - aged in his 30s - with a cut to his ear.
Police alleged passenger Jase McDermott attacked the driver before fleeing on foot.
The driver was taken to Westmead Hospital for treatment and McDermott was arrested when he showed up to Blacktown Hospital a short time later.
The 18-year-old was charged with wounding with intent to cause grievous bodily harm and a plea of guilty was accepted at Parramatta Local Court on Sunday.
McDermott didn't apply for bail and it was formally refused. He's now due to face Blacktown Local Court via video link on Friday.
© AAP 2019