Part of Highway 407 has been reopened afterpolice probed a single-vehicle collision near Bayview Avenue, Wednesday morning.

Ontario Provincial Police had closed the highway’s westbound ramp to Bayview for several hours during the police investigation.

According to OPP, a vehicle rolled over on the ramp at about 4 a.m. No other cars were involved in the collision.

Police crews returned to the scene later Tuesday morning to reconstruct the incident.