A 30-year-old Darien woman died early Sunday after her BMW struck two homes on Hollow Tree Ridge Road, according to Darien Police Sgt. Jeremiah Marron.

The woman, Whitney Smith, was driving a 2009 BMW 328i southbound on the street shortly after 1 a.m. Sunday when the vehicle struck a curb and veered off the road, toward a private residence, according to police.

"It struck two houses. The vehicle was airborne, and went through one house, struck a tree and entered a second house," he said. The two homes hit were 122 and 126 Hollow Tree Ridge Road.

According to Marron, the vehicle went through a bedroom in the first home; the owner's are on vacation and no one was home. After entering the second home, the vehicle went through the kitchen, Marron said.

"The entire family was home, but nobody was injured," Marron said.

Police were originally called to the scene due to a fire alarm. According to Marron, the residents of 122 Hollow Tree Ridge Road heard a loud noise and thought there had been an explosion; they called the fire department.

"Upon arrival, we discovered a serious motor-vehicle accident," Marron said.

"The problems that we've been facing is that there's so much structural damage to the house, that it's in danger of collapsing. It's been a little tricky trying to remove the vehicle. We have it out on the driveway on its roof, but it's barely discernable as a vehicle," Marron told the Darien News from the scene on Sunday morning.

The initial investigation has revealed that the vehicle was traveling in excess of the posted speed limit, which is 25 mph, according to police. Smith was wearing her seatbelt; she was transported to Stamford Hospital after the accident, where she was pronounced dead. An autopsy has been administered, but it will be weeks before the information is released, according to Marron.

Smith was engaged to be married; her wedding date was set for September.

Her funeral will be held Friday, July 23 at St. Thomas More Church in Darien.