France's Hollande says Brexit talks must be concluded by 2019

French President Francois Hollande said on Tuesday that talks on Britain exiting the European Union had to be concluded by 2019 and that the decision to leave the bloc was irreversible. "This choice means that Britain, once it leaves, cannot take part in European decisions. It will not be able to access the single market unless its accepts the four freedoms, all its regulation and budgetary solidarity," Hollande told an annual gathering of French ambassadors.