PHILADELPHIA (WSAV) – A Georgia woman crashed a school bus on a Pennsylvania interstate Tuesday, ultimately causing five fatalities, according to police.

Authorities said the bus was being driven to Canada for delivery. There were no passengers on board.

NBC Philadelphia reports the 69-year-old driver, who has not been identified, caused two multi-vehicle crashes on Interstate 78 near Hamburg.

Police said shortly after 8 p.m., the Georgia woman failed to stop in a construction zone and ran over the top of a sedan before rear-ending an SUV.

According to NBC Philadelphia, August “Gus” Schwartz, the 20-year-old driver of the sedan, was killed, along with the front-seat passenger of the SUV, Thalia Jackson. Both victims were Pennsylvania residents.

Roughly two hours later, authorities said a truck driver being detoured off of I-78 due to the school bus crash was involved in a collision.

The 64-year-old driver reportedly failed to slow down for stopped traffic and rear-ended a van causing a chain reaction.

Two people died in the second crash: 24-year-old Yalibet Lopez-Perez and 54-year-old Jonny Young, both Pennsylvania residents.

A third victim of the second crash died from his injuries Wednesday night, NBC Philadelphia reports. He’s been identified as Joshua Del Toro, 21, also from Pennsylvania.

I-78 was closed down for multiple hours due to the crashes.

No charges have been filed in the ongoing investigation.

CORRECTION: A previous version of this article erroneously stated the driver of the school bus died. She survived the crash.