07/21/2014 04:06 EDT | Updated 09/20/2014 05:59 EDT

SkyTrain shut down by computer glitch

TransLink is shutting down the SkyTrain Expo and Millennium lines because of an undisclosed computer problem.

The shut down comes just days after a computer glitch almost scuppered the entire system on Thursday. The problem took almost an hour to be resolved, leaving the evening rush hour in chaos.

Monday's shut down was described as a "technical issue" by TransLink.

"Due to a technical issue at Skytrain, there are significant delays impacting the Expo & Millennium Line trains. It is also impacting our ability to communicate to passengers in train cars or platforms," says the TransLink website.

"We are working hard to resolve this issue. For those passengers in the trains, please stay in the cars until instructed. Thank-you for your patience."

An image posted to Twitter shows a number of passengers walking along the tracks next to a stopped train.