Peruvian President Dina Boluarte had planned to travel to the Vatican to attend the funeral of the head of the Roman Catholic Church, Pope Francis, on Saturday, but parliament decided otherwise and banned her from leaving the country.
Under Peruvian law, the head of state must receive parliamentary approval before he can leave the country.
The unicameral parliament rejected her request with 45 votes against, 40 in favor, and one abstention.
Peru, which declared three days of national mourning after the pope's death on Monday, will be represented at the funeral by Foreign Minister Elmer Schialer.
Around 50 heads of state and ten reigning monarchs have so far confirmed their attendance at Pope Francis' farewell on Saturday in St. Peter's Square in Rome.
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