No one was injured but employees had to be evacuated following a morning fire at Ventra Plastics in Peterborough's industrial park on Tuesday morning. Frefighters were called to the auto parts plant on Technology Drive around 10 a.m. after a fire alarm was triggered. Crews discovered thick smoke billowing from an injection moulding machine. One employee was assessed by paramedics for smoke inhalation. Frefighters ventilated the building as water from a sprinkler system was discharged from an exterior pipe. Employees waited outside until firefighters cleared the scene. The cause of the fire or damage estimate is not yet known.