The two men who were arrested in connection with the death of Alisa Dmitrijeva, were named at an inquest for the first time today.

Robertas Lukosius, 34 and Lauras Boiko, 30, both lived in Wisbech when the 17-year-old from Railway Road in the same town, went missing in the autumn of 2011.

But the inquest, held at King's Lynn County Court, heard that the two men were called to give evidence but could not be contacted as their whereabouts are now not known.

Phone records showed that Alisa was last known to be at Snettisham beach on August 31 2011 and her remains were found on New Year's Day 2012 in woodland at Amner, Sandringham.

Fibres of her pink t-shirt and hair were found in Lukosius' car, as well as turnip and wheat seeds that were growing adjacent to where Alisa's body was found.

However, the Crown Prosecution Service said that they felt that there was not enough evidence to take it further.

Coroner David Osborne described the case as 'tragic, sad and troubling.'

Recording a narrative verdict, he said that due to her body being badly decomposed, it was impossible to tell how Alisa died.

He said: 'Unfortunately, it has not been possible to determine a cause of her death or whether she died at the scene or elsewhere.

'The circumstances of where her body was found indicate third party involvement, that is to say she was deliberately placed there.'

Mr Osborne expressed his condolences to Alisa's family and said he hoped that today would help the family come to terms with what has happened.

Following the hearing, Detective Inspector Marie James, of the Norfolk and Suffolk Joint Major Investigation Team, who has led the investigation into Alisa's death, stressed that the case would remain open: 'We are certain there are individuals out there who know how and why Alisa died.

'Our investigation into her death will remain open and I would reiterate my message to anyone who may have information to have the courage to come forward.'