Lillia Valutyte had reportedly been playing hula hoop with her younger sister in the street.
Image source, OtherA man has been arrested on suspicion of murder after a nine-year-old girl was fatally stabbed in a town centre.
Lillia Valutyte was found with a stab wound in Fountain Lane in Boston, Lincolnshire, on Thursday.
Lincolnshire Police said the 22-year-old was detained in Boston on Saturday after two people previously arrested were released without charge.
Earlier the force had circulated photos of a man officers wanted to speak to in connection with the killing.
Prior to the arrest officers were seen in the town and a cordon was put in place around Thorold Street.
Lillia had reportedly been playing with a hula hoop with her younger sister on the street and a toy pram was left at the scene, according to locals.
Dozens of flowers and other tributes have been left at the corner of Fountain Lane and Fountain Place in memory of the schoolgirl.
People have also been gathering at a local church to light candles.
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