A crash at the Rutter's Farm Store in Newberry Township Wednesday afternoon caused two hazardous-materials leaks and briefly forced police to close both northbound lanes of Interstate 83.
One tractor-trailer apparently rolled backward while in the convenience store parking lot at 2215 Old Trail Road.
The driver went into the store after filling up his rig with fuel, said Newberry Township Fire Chief Greg Hatterer.
"His parking brake was not fully applied," the chief said.
As the tractor-trailer rolled backward, it struck a tractor that wasn't hauling a trailer at the time.
The driver of that tractor was sleeping in the rig, officials said.
The collision pushed the tractor into a concrete block enclosure that surrounded a propane tank, and the supply line to the tank ruptured, officials said.
Also, about 100 gallons of diesel fuel leaked onto the ground, officials said at the scene. A haz-mat crew sealed off a nearby drain to keep fuel out of it.
Both lanes of I-83 reopened at 1:23 p.m.