Relax, SEPTA subway riders, it will only be a drill.
SEPTA and city first responders and emergency management officials will test their response to a simulated explosion in the SEPTA subway system during a dril Sunday morning.
The 8:30 a.m. exercise "will test plans for a coordinated response to an emergency incident, including a terrorist attack. The drill will also cover practices for investigating unattended or suspicious bags and packages," SEPTA said in a release.
All the fake action will take place at the Fairmount station along the Broad Street line of the city subway system.