A mini horse that serves as a Bay Area resident’s service animal was allowed on a commuter train in San Francisco Tuesday, the transit agency said.

The horse’s owner provided paperwork to a transit worker on the BART train and the horse was cleared for entry, the train system said on Twitter.

“After consultation (station agents usually don’t see horses), the horse was allowed in,” BART said in the message.

“Trained service animals assisting people w/ disabilities and on leash are welcome on BART,” they added.

News of the pony on the train touched off a string of social media posts in support of the animal.

“Forget emotional support dogs… in SF we have emotional support MINI HORSES,” one Twitter user wrote.

“BART had a major delay tonight but I would do it all over again if I could see this pony,” another added.