The incident happened about 11 a.m. Saturday as two events took place at the Boise Spectrum, a complex of movie theaters, shops and restaurants.
A gray Porsche leaving a Boise auto show crashed onto a crowded sidewalk, sending at least 11 people to the hospital.
Just after 10:50am, as the show was wrapping up and vehicles were leaving the parking lot, a Porsche that was part of the show crashed into several pedestrians on the sidewalk.
On Saturday, a group of automotive enthusiasts hosted this season's, but final "Cars and Coffee" event. "The driver lost control and ran into the nearby crowd".
Boise police spokeswoman Haley Williams said there were many with serious injuries, but no fatalities had been reported by late yesterday afternoon.
The Porche driver, who was unhurt, is cooperating with investigators. When it's complete authorities will forward it to the Ada County prosecutor for possible charges against the driver.
Vikings, Steelers square off after opening wins
Vikings RB Dalvin Cook rushed for 127 yards in Week 1, the most by a Viking in his National Football League debut. Louis Rams, Bradford suffered a torn left ACL in the seventh game in 2013 and missed the rest of the season.
Overland Road is closed as officers investigate. Hundreds showed up to view the unique cars on show and engage the drivers.
Six individuals were transported to the doctor's facility by rescue vehicle, and five went in private vehicles.
On social media, witnesses have suggested children were among those hit.
"We do not have any information that this was an intentional act", Lebar said.
No one has yet been cited, said LeBar.