MUNSTER, Ind. (AP) – An Indiana woman who lost seven family members in a fiery highway crash last year says more needs to be done to ensure truck drivers are operating safely.

Judith Williams tells Lakeshore Public Radio she believes the accident that killed her two daughters, their uncle and the women's four children could have been prevented. She is calling for more laws regulating truck drivers to ensure they are alert enough to be on the road.

Williams' family members were killed Aug. 15, 2013, when a semi-truck rear-ended their SUV while it was stopped in traffic near a work zone in Jasper County.

Investigators say the Michigan truck driver failed to brake before striking the SUV, but no drugs or alcohol were found in his system and he wasn't charged.