A two vehicle crash snarled traffic on the 401 through Cambridge on Tuesday morning.
It happened around 7:00 a.m. in the eastbound lanes just east of the Homer Watson on-ramp.
Police say both vehicles rolled, taking out a road sign and ended up in a ditch.
Traffic crawled past the scene as fire crews, paramedics and police helped the victims.
It’s not clear how many people were in the vehicles or the extent of their injuries.
