VIDEO: A vintage WWII plane crashed at Bradley International Airport in Windsor Locks on Wednesday morning and caused a large fire. Six patients were brought to Hartford Hospital, the hospital said. The Life Star emergency helicopter confirmed that it was transporting one of them. The airport posted on Wednesday morning that it is closed. The Federal Aviation Administration put a ground stop on all flights to the airport. The FAA said that the pilot was attempting to make a landing on one of the runways when the aircraft crashed around 10 a.m. It also said the aircraft is a civilian-registered aircraft and was not flown by the military. "We can confirm that there was an accident involving a Collings Foundation World War II aircraft [Wednesday] morning at Bradley Airport," Bradley Airport posted to Twitter. "We have an active fire and rescue operation underway. The airport is closed. We will issue further updates as information becomes available."