Lulu in George Street was evacuated at around 1.30am on Monday. Picture: Google Street View

Revellers at Lulu in George Street had been evacuated by the time the crews arrived at 1.30am on Monday.

A total of five fire engines, equipped to deal with hazardous materials, were sent to the scene after reports that a gas has been released in the premises.

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A spokeswoman for the Scottish Fire and Rescue Service said that, on arrival, crews made sure the scene was safe, remaining on site until 3.07am.

No hazardous substances were found and the suspected gas is thought to have been a body spray.

No-one was injured in the incident.