OTTAWA (Reuters) - Canadian Prime Minister Justin Trudeau said on Wednesday (Dec 16) that Canada would only respond to concrete rather than speculative trade policy proposals put forward by US President-elect Donald Trump.

Mr Trudeau has come under fire from the Canadian opposition for saying he was open to renegotiating the North American Free Trade Agreement (Nafta) between Canada, the United States and Mexico, given Mr Trump has threatened to scrap it.

Mr Trudeau has refused to be drawn out on whether Canada might form a common position with Mexico over the deal. He is due to meet with President Enrique Pena Nieto where the issue is expected to be discussed.

During his two-day trip to Cuba, Mr Trudeau has vowed to maintain Canada's strong relationship with Havana, even if that puts it at odds when it comes to Mr Trump.

Canada has long been one of Cuba's closest western allies.