A British fugitive suspected of murder has been named on a list of Europe's most wanted men.

Shane O'Brien is the prime suspect in the murder of 21-year-old Josh Hanson, who was killed in an unprovoked knife attack in a bar in Hillingdon, West London, in 2015.

Europol, which announced Europe's most wanted late on Friday, has put up a £50,000 reward for information leading to the arrest and prosecution of the suspected killer.

In February 2017, O'Brien was arrested in Prague for criminal damage and assault where he presented false documents for an Italian alias of Enzo Mellonceli.

As a result, he was bailed pending further enquiries and has been on the run since.

In 2015, Scotland Yard issued a picture of O'Brien with light stubble, a defined jawline and short, cropped hair.

After his arrest in the Czech Republic capital 18 months later, a mugshot shows he has grown his hair, has a full beard and has a distinctive new tattoo of an owl holding a skull, which covers up his previous "Shannon 15-04-06" tattoo.

O'Brien, originally from Ladbroke Grove in North London is said to use aliases including Enzo Mellonceli and Enzo Machado.

Mr Hanson, from Kingsbury in North-West London, was found with a serious wound to the neck at the RE Bar in Hillingdon at about 1.10am on October 11 2015. He was pronounced dead at the scene.