Authorities have arrested the 15-year-old son of the Canadian Consul General in Miami after they say he was involved in a marijuana deal that ended in gunfire and claimed the life of his older brother and another man.

Police believe Marc Wabafiyebazu and his 17-year-old brother Jean Wabafiyebazu — both armed with guns — planned to rob the drug dealers on Monday afternoon at a home in the Coral Way area.

In the gunfire, Jean was shot and killed inside the home. One of the suspected drug dealers, Joshua Wright, was also killed. A third man, Anthony Rodriguez, was wounded and drove off. He was later found at a nearby gas station.

“That’s what we believe, it was a a dispute over a drug transaction,” Miami Police Chief Rodolfo Llanes told the Miami Herald.

Miami police on Monday afternoon arrested Marc Wabafiyebazu for felony murder. Under Florida law, anyone who participates in a violent felony in which someone dies — in this case, armed robbery — can face a murder charge.

Marc Wabafiyebazu is being held in juvenile detention. Rodriguez, 19, is also charged with felony murder and marijuana possession with intent to sell.

At least one other young man was wounded at the home at Southwest 36th Street and 17th Terrace, just east of Coral Gables. Police say Marc Wabafiyebazu was outside the home in the car when the gunfire broke out.

The teens are the sons of Roxanne Dubé, who only recently assumed the role of consul general in Miami. A former Fulbright scholar, she has extensive diplomatic experience, having worked as an aide in Parliament and as the ambassador to Zimbabwe.

The Canadian government and the U.S. State Department are working with Miami police to untangle the events.

The teens, according to sources, drove to the drug deal in their mother’s black BMW — with diplomatic license plates. Detectives are trying to figure out where the teens got the weapons.

The alleged deal was for 2 pounds of marijuana at a price of nearly $5,000, sources said.

Meanwhile, the Montreal Gazette reported that Dubé was named Consul General in Miami in November. According to the newspaper, she has had a long career in the diplomatic corps, including being named ambassador to Zimbabwe in 2005 with concurrent accreditations to the Republic of Angola and the Republic of Botswana. From 2005 to 2008, she served as Canada’s special representative to the Southern African Development Community.