A tractor trailer rollover closed U.S. 322 Eastbound in Mifflin County near the Seven Mountains area. The crash, which occurred north of Milroy, blocked both lanes, forcing the closure of the highway from Old Route 322 in Potters Mills to Milroy. PennDOT traffic cameras showed the vehicle on its side, and first responders were called in. Drivers were being urged to expect delays and road closures. The situation remains under investigation.