An aerial view of the Lester B. Pearson airport as photographed from an airplane on August 28, 2012 in Toronto, Canada. (Bruce Bennett/Getty Images)

A Sunwing Airline flight from Canada to Cuba was forced to return to Toronto last night accompanied by a military jets after two hard-drinking, cigarette-smoking women got into a brawl in the plane’s bathroom.

A spokesman for the airline, which specializes in tours to Latin America, told CTV the women became unruly after consuming “a significant quantity of their duty-free alcohol purchase in the plane’s lavatory” and lighting up a cigarette, which set off a smoke alarm.

The unruliness turned into a full-fledged “physical altercation,” she said. The women also allegedly made a “threat against the aircraft, which was considered non-credible given their condition,” spokesman Janine Chapman told CTV.

The women, both said to be in their 20s, were arrested when the plane landed at Toronto’s Pearson airport, police told the Toronto Globe and Mail. The women have not yet been identified.

“Their actions and something they said had some concern for the passengers,” Constable George Tudos of the Peel Regional Police told the paper.

In a statement, the North American Aerospace Defense Command said it sent two CF-18 fighter jets based in Quebec to accompany the flight as it returned to Toronto as a “precautionary measure.”

Sunwing Flight 656 departed Toronto at 4:30 p.m. en route to Cuba. The location of the flight when it turned around was unclear.