Two accidents happened within minutes of each other with a one-vehicle rollover sending one person to hospital and a second two-vehicle accident about 500 metres away injuring four people.
Both occurred in the eastbound lane.
While none of the injuries was considered life-threatening, firefighters had to use the Jaws of Life to help remove passengers in the two-vehicle accident.
As emergency personnel attended to the first two incidents, a third vehicle containing four young people rolled over an embankment in the westbound lane, in the same area.
There were no serious injuries in the third accident.
Traffic was backed up for about an hour as the scenes were cleared.
Capt. Ron Bailey of the St. John's Fire Department said the heavy rain and wet road conditions were the likely cause of the accidents.
