The uncle of missing 2-year-old Sky Metalwala said the boy’s mother, Julia Biryukova, is “upset with the whole situation.”

KIRO 7 Eyewitness News reporter David Quinlan spoke with Biryukova’s brother, Stan Biryukov, outside his Belltown apartment Wednesday afternoon.

Sources told Quinlan they believe Julia Biryukova has stayed with her brother since reporting Sky's disappearance.  (Editor's note: This corrects an earlier version of this story that said police believed Julia was staying with her brother). She is only speaking to police through her attorney, so police are not completely sure about her whereabouts.

• Wednesday at 7: See The Search for Sky, a KIRO 7 Special Report
• Slideshow: Crews search for Sky by land,water, air
• Timeline in the disappearance of Sky Metalwala
• 'Like' Search for Sky on Facebook

Biryukova’s brother told Quinlan he didn’t know what he could do to help in the search for his nephew.

“How’s your sister doing?” asked Quinlan.

“She’s upset with the whole situation.  We’re just hoping for the best,” said Stan.

So upset, according to her attorney,  that she is unable to speak with police directly or take a polygraph test. 

Email tips to pdtipline@bellevuewa.gov | Tip line: 425-452-2564

Police said her story of leaving the boy alone in her car while she walked to get gas with her other child in Bellevue doesn’t add up.  Biryukova said the boy was gone when she returned about an hour later, sans gas can, on Nov. 6.

And police said the car showed no mechanical issues and had more than two gallons of fuel in the tank.

In addition, police requested information from the site seekingarrangement.com this week, where a profile under Biryukova’s name said she was seeking a “sugar daddy” in exchange for $3,000 to $5,000 a month by a “real man.”  The owner of the site said he couldn’t be sure if Biryukova had posted the ad, but the post was from someone in the state.

For the first time in 10 days, Bellevue police detectives did not hold a briefing on the search for the boy.

Police said there simply wasn’t any new information that investigators were ready to release.

Meanwhile, ClearChannel Outdoors started posting a billboard plea for information.  Six digital billboards in Kent and one near the Tacoma Dome now flash Sky's face to remind drivers to be on the lookout and that investigators are looking for any leads they can get.

A second advertising company in Portland is also donating space on 10 of their digital boards in Eastern Washington, Oregon and Wyoming.