A teenager being held on suspicion of attempted murder has been wrongly released from a prison in London.
A 10,000 reward has been offered by the Metropolitan Police for information leading to the arrest of Jordan Lee Francois.
The 18-year-old was released from Wandsworth Prison, southwest London, where he was on remand.
He is described as 6ft 4in tall and of stocky build. He is known to have links with north London, police said.
Detective Chief Inspector Noel McHugh, from the Homicide and Major Crime Command, said: “I believe Francois may present a risk to the public.
“If anyone has information that could lead us to find and arrest him then I would urge you to get in touch with us immediately.
“We have a number of officers currently working hard to track down Francois and arrest him.”
The Prison Service said it would “formally investigate” the incident.
A spokesman said: “Releases in error are a very rare but regrettable occurrence.
“The number of incidents have fallen significantly in recent years with figures down by a quarter compared to 2009/10 but every incident is taken extremely seriously and we are not complacent.
“We will formally investigate this incident and it is now a matter for the police.”
:: Anyone with information should contact the investigation team on 101 or Crimestoppers on 0800 555 111.