Highway 407's eastbound lanes have reopened at Derry Road in Milton after a dump truck knocked down a large sign, Ontario Provincial Police say.
OPP closed the lanes at about 9:30 a.m.
Other vehicles struck the downed sign as it blocked all the lanes on Highway 407 near Highway 401.
No serious injuries were reported.
The road was closed to allow crews to remove the sign and any crash debris.
It's not known if any charges will be laid. Police continue to investigate.
