NTSB Will Investigate Deadly 135-Car Fort Worth Freeway Accident

(Fort Worth, TX) — Federal regulators plan to investigate last week’s deadly 135-vehicle pileup on I-35W in Fort Worth.

The National Transportation Safety Board’s probe will look into whether the road surfaces had been treated for ice. Fort Worth police are still investigating the series of accidents that killed six people and injured dozens of others last Thursday.

The agency that maintains the roadway says its pre-treatment started days before the disaster.