PORT-AU-PRINCE (Reuters) - Haiti Prime Minister Gary Conille has submitted a resignation letter to President Michel Martelly, several sources said on Friday.

Conille's resignation comes amid political infighting between the two leaders over a parliamentary commission investigating the nationality of government ministers.

There was no immediate comment from the office of either the president or the prime minister.

(Reporting by Joseph Guyler Delva; editing by Christopher Wilson)

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