Northbound lanes on Interstate 476 in Delaware County have reopened after a serious crash that shut down the highway during the morning rush.

PennDOT said traffic began moving again at about 7:45 a.m. All northbound lanes between Exit 9 (for State Route 3) in Broomall and Exit 13 (for U.S. Route 30) near Villanova had been closed for nearly an hour.

Traffic remains backed up in the area, and motorists should expect continued delays.

The crash involved multiple vehicles, but additional details weren't immediately available.

Contact Emily Babay at 215-854-2153 or ebabay@philly.com. Follow @emilybabay on Twitter.
Contact the Breaking News Desk at 215-854-2443 or BreakingNewsDesk@philly.com. Follow @phillynews on Twitter.