New York ( CNN ) -- Officials have now identified all three people killed in the hot air balloon fire and crash at a Virginia festival . They are the 65-year-old pilot , Daniel Kirk ; and two passengers : Natalie Lewis , 24 , and Virginia `` Ginny '' Doyle , 44 . Both Lewis and Doyle were members of the University of Richmond women 's basketball program , the university said . `` We are deeply saddened by the tragic event and the loss of Ginny . Words can not express how we feel or our remorse , '' the Doyle family said in a statement Monday . `` She touched the lives of many and lived life to the fullest . She will be greatly missed and holds a special place in all our hearts . '' What authorities still do not know is what caused the balloon to drift into power lines , catch fire and crash Friday night . Police and the National Transportation Safety Board are investigating . Norm Hyde , spokesman for festival host Meadow Event Park , said Federal Aviation Administration inspectors were on site Friday , checking balloons and safety records before the balloons took off . All the balloons ' safety records were up to date , he said . Weather conditions are one of the elements investigators are looking at , NTSB air safety investigator Heidi Moats said . There was no inclement weather at the time and , so far , officials do n't believe those conditions played a role in the crash , Geller said over the weekend . Thirteen hot air balloons had been soaring on the eve of the Mid-Atlantic Balloon Festival in Doswell , and three were landing close to each other . Two landed safely , Geller said , but as the third balloon descended , it hit a power line , sparking a fire that spread quickly . The pilot began doing his safety maneuvers and `` took every step to manage the situation , '' Geller said . But then there was an explosion , and the basket and balloon separated . How safe is hot air ballooning ?
Two victims were part of University of Richmond college basketball program . One was a student at the school and another was an assistant coach for the team. Authorities are investigating the cause of the crash .