TORONTO - A union spokesman says GO train service will not be affected by a possible CP Rail strike.

GO Transit had been preparing for a possible disruption of service along the Milton train line and at the Hamilton GO Centre station in the event of a strike.

The union says a deal was reached Tuesday afternoon on the commuter train issue, adding "commuter trains will be operating."

Nearly 5,000 Canadian Pacific Railway workers could legally walk out one minute after midnight local time on Wednesday.

A strike would halt shipments of grain, fertilizer, coal and other goods Canadian Pacific moves along nearly 24,000 kilometres of track in Canada and the U.S.

The major points of contention at the bargaining table are pensions, some work rules and fatigue management.