Police investigating the killing of a nine-year-old girl in Lincolnshire have released images of a new suspect.

Lilia Valutyte was found dead after being stabbed in Fountain Lane in Boston at about 6.20pm on Thursday.

Two other people arrested earlier have been freed with no further action, police say.

Chief Superintendent Martyn Parker said: “Our officers have been working round the clock on this investigation, and the public’s help may prove crucial.

“These are very clear images of a man we want to speak to, so I’d urge anyone with information to get in touch with us. If you see him, do not approach him but immediately call 999.

“This is a particularly tragic case and I’d like to reassure the public that we have a huge amount of resources dedicated to the investigation.

“We continue to provide support to the family of Lilia, as they grieve following this unimaginable loss.”