An RCMP statement alleges that Ashton Carleton Larmond and Carlos Larmond, both 24, were planning to leave Canada to engage in terrorist activities abroad.
The RCMP say Ashton Larmond is charged with facilitating terrorist activity, participation in the activity of a terrorist group and instructing to carry out activity for a terrorist group.
Carlos Larmond faces charges of participation in the activity of a terrorist group and attempting to leave Canada to participate in terrorist activity abroad.
The news release says the arrests were made on Friday _ Ashton Larmond was arrested in Ottawa while Carlos Larmond was arrested at Montreal's Trudeau international airport.
Police say a court date has yet to be determined. They add they won't comment further because the case is before the courts.