Police in Quebec have set up a command post in the municipality of Brossard, as the search for a missing woman and her six-month-old baby enters its seventh day.

Jian Ping Li, 42, was last seen at her home in Brossard on April 30 at about 9:40 a.m.

When her husband came home that day at about 2:30 p.m., Li and their six-month old boy, Xiao Feng Lu, were gone. Her husband told police that her wallet and the baby's stroller were still at the house.

Police set up the command post Wednesday morning near Li's home, so they could speak to neighbours, passing pedestrians and drivers. Officers were seen passing out flyers with Li's photo on it as they spoke to passersby.

Longueuil police spokesperson Const. Jean-Pierre Voutsinos said that officers want to speak with anyone who has any sort of information about the case.

"Sometimes people think they know something but they believe it's not of any value," he told CTV Montreal. "But we need to get all of those (pieces) of information because put together they might be of extreme value."

Last week, police combed the area for the mother and child, using a helicopter and dogs to help with the search.

Meanwhile, a $5,000 reward is being offered by the Sun Youth organization for any information that leads to the discovery of Li and her son.

Officers hope that by publicizing the case, they will find someone who can provide them with a lead.

Li speaks Mandarin and has limited skills in English and French. She is about five feet tall and weighs about 143 pounds. She has shoulder-length black hair and brown eyes, and wears glasses.

Police say she may have been wearing a long coat and yellow running shoes at the time of her disappearance.

Anyone with any information about the case is being asked to call police at 450-463-7211.

With files from CTV Montreal's Denise Roberts