A bus used to shuttle senators and MPs around Parliament Hill took an unexpected lift in Ottawa, when it was hoisted off the ground by retractable security bollards.

The bus appeared to have been stopped over the bollards on Tuesday evening, when the bollards lifted the front of the vehicle off the ground.

A short video posted to Facebook by Michael O’Shaughnessy shows crews in the process of lowering the bus.

It is unclear if any passengers were on the bus at the time, or if anyone was injured during the accident. The RCMP was unavailable to comment on the details of the incident.

The barricades were installed as part of security upgrades on Parliament Hill in 2013. The effectiveness of the bollards and other security features came into question after an attack by armed gunman Michael Zehaf-Bibeau on the Hill the following year.