A KNIFEMAN who plunged a blade into a teenager's leg is on the loose, police have confirmed.

Scores of officers could be seen surrounding the area by Arthur Hill pool in Kings Road, Reading, after an investigation was launched earlier this afternoon (Wednesday).

Thames Valley Police were called to the scene after a 17-year-old boy was stabbed in the leg.

Paramedics arrived shortly before 1.30pm and treated the victim before taking him to Royal Berkshire Hospital.

Police officers have launched a manhunt for the attacker after they fled the scene.

A police spokesman said: "Thames Valley Police is appealing for witnesses following an assault occasioning grievous bodily harm in Reading.

"The incident took place between 12.30pm and 1.30pm in London Road, at the junction with Wokingham Road, in the Crown Colonnade area.

"The victim, a 17-year-old boy, sustained a serious stab wound to his leg.

"He has been taken to hospital for treatment where he remains."

Investigating officer Detective Constable Devjeet Hunjan, of Reading Force CID, said: "This incident has resulted in the victim sustaining a serious wound to his leg.

"We are in the process of carrying out an investigation into this incident, and I would like to appeal for anyone with any information about this offence to get in touch.

"If you have any details which you think could help our investigation, please call the Thames Valley Police non-emergency number 101."

There is no description of the attacker at this time.

More follows.