Danbury Police are seeking the public's help in their investigation of a car crash that sent three people to the hospital on Sunday. Officers responded to Clapboard Ridge Road shortly before 9pm on a report os a serious collision. A Honda CRV was headed south when it crashed into a Honda Accord headed north. Both operators and a passenger from the Accord were transported to Danbury Hospital. The Traffic Division is looking for witnesses that might have information to contribute to the investigation.