Investigators are looking into the cause of a tractor trailer crash which blocked the north bound lanes of Highway 400 north of Vasey Road Thursday night.
One person was taken to hospital with minor injuries.
Police were able to reopen one northbound lane at 5:00 a.m. Friday but then closed all lanes for a couple of hours later in the morning so the tractor trailer could be removed.
OPP say all lanes were reopened early Friday afternoon.