Morning commuters in Australia encountered an unusual — and adorable — train delay: a speedy dog who had some zoomies to get out.

The dog, Heidi, escaped her owner around 8 a.m. on Thursday, June 29, at a train station in Sydney and took off down the track, 9News reported.

Train passengers and staff at another station spotted Heidi running along the tracks and alerted authorities, the outlet reported.

Video footage shared by 10 News First shows Heidi zooming along the tracks. The small, fluffy dog made two laps of the train track, the outlet reported.

As trains came to a halt, T1 Sydney Trains issued a travel warning for passengers to “allow extra travel time due to animals in the rail corridor,” according to a post on Twitter.

Heidi outran officials who attempted to rescue her, the Sydney Morning Herald reported. Over an hour later and finally satisfied with her run, she exited the tracks near a station where officials captured her, the outlet reported.

“Heidi is 10-years-old so she should be slowing down by now but no, she still has the energy of 45 puppies,” Heidi’s owner told The Sydney Morning Herald.

“I also want to apologize to everyone like me who was held up by this whole incident this morning,” the owner told 9News.

“It was a fast little dog,” Sydney Trains chief executive Matt Longland told The Sydney Morning Herald.

Transport for New South Wales shared photos of the rescue on Facebook.

“The rogue pupper did cause some trains to be delayed and is one lucky pooch,” officials said.

Sydney Trains shared a photo on Twitter of a happy-looking Heidi after finishing her run.

“I don’t mind being late this morning for this wee pup,” one person commented on Facebook. “Thank goodness she’s ok.”