A bomb scare prompted the evacuation of hundreds of people in Mount Kisco Thursday.

According to police, a bomb threat was called in at around 9 a.m. People inside the Mount Kisco Medical Group, Morgan Stanley, Smith Barney and All Aboard Childcare Center were immediately evacuated. The day care center was provided with diapers and cribs during the evacuation.

After bomb-sniffing dogs cleared the buildings, people were allowed re-entry around 11 a.m. Police are investigating the threat.