Police and Paramedics were called to a stabbing at the Co-op Supermarket, Leeming Road, #Borehamwood, at 1.44pm on Sunday, 19th January.
A 16-year-old male was treated for stab injury by paramedics and subsequently transferred to St Mary’s Hospital.
Police are currently making enquiries, but it is believed that both parties are known to each other and this is being treated as an isolated incident.
Anyone with information is asked to please call Detective Sergeant Gemma Badat on 101. If it is an emergency, always dial 999.