The cause of the accident was allegedly carelessness on Abe's part, and the police plan to file a report. There has been no official reaction from Up-Front Agency as of yet.
Here's a news broadcast about the incident:
This following info is thanks to Hello!Online forum user jukucho-love:
"By the way, in the TV program in this August, she said that "UFA opposed my acquisition of the driving license for a long time. but, it was permitted recently and, at last, I was able to obtain it". She will not drive the car after this. (also other H!P members)
By the way, she has been chosen to the poster of the road safety"