CTV has confirmed reports that a man carrying a gun showed up near the home of an Air Canada executive on Wednesday night.

Ottawa police responded to a call shortly before 10 p.m. Wednesday night after a private security guard reported seeing a man with a gun drive by the home of Duncan Dee, Air Canada's vice president and chief operating officer.

"A private security guard saw the vehicle and when the vehicle drove past him, the (male driver) appeared to show him a handgun." Ottawa Police spokesman, Const. Marc Soucy, told Â鶹´«Ã½.

The suspicious vehicle drove by Dee's home several times before the security guard reported seeing the gun.

The alleged gunman drove off before police could arrive. Police said the vehicle's plates were partially covered.

Soucy said contrary to earlier reports, the driver did not make any verbal threats about the ongoing labour tensions between Air Canada and two of the airline's unions.

Air Canada has provided security to its top executives during the current labour strife. Late Thursday afternoon private security guards were still posted outside Dee's home.

Police continue to investigate the incident and said they have a detailed description of the suspect.

"All avenues will be looked at," Soucy said.

The incident occurred the same day that Ottawa blocked a strike by Air Canada's 6,800 flight attendants by referring the labour situation to the Canada Industrial Relations Board.

The board suspended the union's legal right to strike while it evaluates the two referrals brought forth by Labour Minister Lisa Raitt.

The flight attendants had planned to strike at 12:01 a.m. Thursday.