( L - R ) Huard, Rochefort

PORT-AU-PRINCE, Haiti (AP):

Two Canadian men were arrested and charged Wednesday with sexually abusing children in a Haitian orphanage, United Nations police said.

Orphanage volunteers, Armand Huard, 64, and Denis Rochefort, 59, were arrested in Quebec after a two-year investigation into their activities in Les Cayes, a coastal city on the country's southern peninsula, said Fred Blaise, spokesman for U.N. police in Haiti. They will be tried in Quebec.

It was not immediately clear how many Haitian children might have been involved. Representatives with the Canadian Embassy and UNICEF in Port-au-Prince said officials were looking into the case.

The investigation began in 2006 and was carried out by Haitian and Quebecois police, the Royal Canadian Mounted Police and members of the 7,800-strong U.N. peacekeeping force, Blaise said.