Just weeks after the G-20 summit in New Delhi, ties between Canada and India are unraveling.

Canada Prime Minister Justin Trudeau accused government agents from India of being involved in the killing of a Sikh community leader in British Columbia.

India immediately denied the claims and accused Canada of harboring terrorists. Both countries have expelled diplomats and issued travel advisories in the other country. As tensions escalate, the US finds itself caught in the middle.

For more on this situation, KCBS Radio's Bret Burkhart and Patti Reising spoke with Roland Paris, professor of international affairs at the University of Ottawa, an associate fellow of Chatham House, and a former senior advisor on foreign policy to the prime minister of Canada.