FRANKFORT, Ind. (AP) - Authorities say a 17-year-old driver was speeding on a county road when her car went out of control and crashed into the living room of a rural central Indiana home Wednesday night, killing two young sisters who were inside.

Clinton County sheriff's Chief Deputy Joseph Mink said Thursday the driver was arrested on preliminary charges of criminal recklessness and that blood tests were being conducted. The car went through a ditch before running into the house near Frankfort about 9:30 p.m. Wednesday.

He identified those killed as 17-year-old Haleigh Fullerton and 9-year-old Callie Fullerton. Mink says their 37-year-old mother, Bridget Fullerton, was injured and recovering at an Indianapolis hospital.

During a vigil Thursday night at Cornerstone Assemblies of God Church, the two grew up watching their grandfather preach.

Pastor Brad Fullerton, their grandfather, said "my heart says there's no need to get up, but they're in heaven."

The Clinton County sheriff's department says the 17-year-old driver was arrested on preliminary charges of criminal recklessness. Blood tests were conducted but the results are not yet available. 

Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.