The woman was leaving her house in the 2500 block of Marian Lane to walk her dog at about 9:30 p.m. when three masked men forced their way into the home, Wilmette police said. One of the invaders was armed with a gun, police said.
Once inside, the robbers bound the woman with plastic ties, later gagged her, then ransacked her home, police said, taking jewelry and an undisclosed amount of money.
Family members returned home at 10:30 p.m. and freed the woman from her restraints. Wilmette police responded to the call minutes later.
The woman was taken to an a nearby hospital after suffering minor injuries on her arms and wrists from being dragged and tied up, said Wilmette Police Chief Brian King. The dog was unharmed.
"We have very few home invasions in Wilmette," said Wilmette Police Chief Brian King. "We're obviously putting a lot of investigative resources into solving this crime."
The woman's family owns a restaurant in Chicago, King said, and the woman appears to have been specifically targeted. King declined to offer any additional information on the woman's identity while Wilmette police are continuing their investigation.
Wilmette police are encouraging anyone with information on the crime to call Detective Sgt. Michael McGarry at firstname.lastname@example.org