Metrolinx says GO trains are running on a regular schedule this morning after a widespread outage halted service across the network on Tuesday. 

The problems began after CN rail reported an online outage on Tuesday afternoon, prompting Metrolinx to stop all trains along the network just before 1:45 p.m. GO trains and UP Express trains were ordered to hold at their nearest station until the issue was resolved.

Some service was back up and running on a number of lines at around 4:30 p.m. and in a statement released shortly before 8:20 p.m., CN said its internet connectivity had been restored.

"At this time, we can confirm that we have resumed normal GO Train and UP Express service today with minimal disruptions," Metrolinx said in a written statement issued Wednesday morning. 

"While we do not anticipate further delays or cancellations, we are committed to providing as much notice as possible to customers in the event of any changes." 

Officials urged travellers to “check the service updates page before heading out the door.”

“We are deeply thankful to all customers for their patience,” another statement released Tuesday night read.