Eight teenagers will receive urgent blood tests after being pricked with a syringe at a Sydney high school in a "prank" that saw emergency services race to the scene in the city's west.
Ambulance and police crews were called to Plumpton High School about midday on Thursday following initial reports multiple people had been stabbed with a syringe.
But NSW Police Force subsequently said a student appeared to be pulling a "prank" and the eight students each received "a minor needle prick".
"They will attend a medical centre for testing as a precaution," a police spokesperson said in a statement.
Officers are yet to speak with the student allegedly behind the prank.