The family of a Brooklyn man with dementia who went missing earlier this week said he may be in the Bronx.

The McKnight family had searched up and down Brooklyn sidewalks for their beloved father and grandfather, 69-year-old Larry McKnight, of Crown Heights.

His granddaughters told News 12 on Saturday night that this has the longest he's ever gone missing. They said it's painful not knowing if he is OK or not with the winter temperatures dropping at night.

His granddaughters lit candles and hung up dozens of missing person flyers with the hope someone has seen him and can help.

Police say McKnight was last seen Tuesday, Jan. 30 on Utica Avenue and Pacific Street just after 2 p.m. He is described as 5 feet 6 inches tall, with salt and pepper hair, and weighs about 165 pounds.

The McKnight family said their next step is to go to the Bronx and distribute the missing person flyers because they feel he may have been seen there.

A family member told News 12 he contacted Chase Bank, they went into the branch and the branch manager looked into the transactions on his debit card. He said it showed McKnight's debit card was used on the Grand Concourse in the Bronx.

Police ask residents who see McKnight to call Crime Stoppers at 1-800-577-TIPS.