A projectile hit a SEPTA train minutes before an Amtrak train derailed in Philadelphia Tuesday night, SEPTA spokeswoman Jerri Williams confirmed.
Williams said investigators do not believe the SEPTA incident is related in any way to the derailment.
The projectile hit and busted the engineer's window on a northbound SEPTA train that was headed to Trenton on tracks that run along the Amtrak rails, according to The Philadelphia Inquirer. About 80 passengers were put on buses to continue their trip.
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Less than five minutes later and approximately four miles away Amtrak train 188 shuddered and went off the tracks at the Frankford Junction in Northeast Philadelphia, killing at least 7 people and injuring more than 200.
A full investigative team from the National Transportation Safety Board and multiple federal, state and local agencies remained at the crash site Wednesday.