Trains are running again on O-Train Line 4 to the Ottawa airport after being halted Saturday because of another staffing shortage.
It was the second staffing-related shutdown of Line 4 in just over a month, with service also grinding to a halt on the weekend of May 16.
OC Transpo announced in a social media post late Saturday morning that service on the spur line from South Keys station had been halted, with the route 105 bus running in its place.
Trains were offline for several hours. Shortly before 4 p.m., OC Transpo said regular service had been restored.
On Friday, OC Transpo general manager Rick Leary announced there would be reduced weekend frequency on Line 4 this summer, with trains running every 24 minutes instead of every 12.
OC Transpo scaling back some bus, train routes this summer
That change — part of a plan to address staffing and maintenance issues on the transit network — would go into effect next Sunday and run until Aug. 28, Leary said.
Line 4 was also shut down last weekend for maintenance.