Ahead of the fifth anniversary of Sky Metalwala’s disappearance, police reported that new information teased last year lead nowhere and renewed their pleas for the boy’s mother to cooperate with the investigation.

In a plea addressed to Sky’s mother, police Chief Steve Mylett asked her to contact his office directly and spoke of how Sky’s disappearance had impacted the community.

“The employees of the Bellevue Police Department will not stop searching for Sky, but I cannot emphasize enough the role you play in successfully locating your little boy. As you know, many people have been impacted by Sky’s disappearance and I know they would all welcome your active participation in this investigation.”

The then-2-year-old went missing on Nov. 6, 2011 after his mother, Julia Biryukova, reported that her car ran out of gas in the 2400 block of 112th Ave. NE in Bellevue. When she returned to the car approximately an hour later, Metalwala was gone.

Though police stated last year that they had new, unspecified evidence, nothing came of it and Biryukova remains the key to the case.

Shortly after the disappearance, holes emerged in Biryukova’s account. A police investigation revealed that her car was not out of gas and has no mechanical problems.

While she spoke to police on the day she reported Sky missing, Biryukova has since refused to participate in the police investigation. She has since had another child, but ended up in court after being declared an unfit mother by Child Protective Services last year.

Child Protective Services case workers wrote in a court brief that they were concerned about her mental health and said she was unstable.

Sky’s father, Solomon, has long maintained belief that his son will be found one day. The Kirkland resident reportedly gave police the new information they were investigating last year, and he continues to speak publicly about his search for Sky.