( CNN ) -- A 79-year-old Florida woman backed over seven pedestrians Sunday morning while backing out of a handicapped space in a church parking lot , killing three people , police say . Doreen Landstra was backing out of a space in the parking lot of a 55-and-older mobile home community in East Bradenton when she lost control of her SUV , striking the pedestrians and crashing over a curb before coming to rest partially submerged in a creek . Florida Highway Patrol spokesman Lt. Gregory Bueno tells CNN charges are pending as the investigation continues . Landstra , a former choir director in the Bradenton community , according to CNN affiliate Bay News 9 , was leaving church when , according to witnesses , she appeared to think she put her Chevrolet SUV in drive but instead shifted into reverse . According to Bueno , three Bradenton residents -- Johanna Dijkhoff , 80 , Wilhemina Paul , 70 and Margaret Vanderlaan , 72 -- died as a result of their injuries . Four others sustained serious injuries and were taken to an area hospital . One has since been released , Bueno said . Witness Jan Verstveg told Bay News 9 that he watched Landstra reverse into the crowd . Landstra told witnesses `` somehow the pedal got stuck '' and that `` it was all a terrible accident , '' Verstveg recalled . Some witnesses told Bay News 9 they `` heard screams . '' Landstra 's 87-year-old husband was in the car with her . Neither sustained injuries . Landstra was interviewed by investigators at the scene and then left with her family , according to Bay News 9 . Bueno declined to provide CNN with details regarding Landstra 's condition at the time of the crash and was unable to speculate on possible charges she may face . The Florida Highway Patrol said in a report that the accident was not alcohol related . Tennessee church bus crash kills seniors on way to jubilee .
Woman backs over seven pedestrians ; four were hospitalized with injuries . Police say charges pending against driver as investigation continues . Woman told witnesses it was `` terrible accident , '' CNN affiliate reports .