Mexican President Andrés Manuel López Obrador has won a referendum on whether he will remain in office.

According to a projection by the national electoral authority on Sunday evening (local time), between 90.3 and 91.9 percent of those surveyed said that the left-nationalist politician should hold the highest office of state as planned until December 2024.

However, only about 18 percent of those eligible to vote took part in the referendum.

For the 68-year-old president to be voted out of office, 40 percent would have had to vote.

Critics had called for a boycott of the plebiscite.

López Obrador and his Morena party introduced the 2019 referendum with a constitutional reform to give the president more democratic legitimacy.

A similar procedure was introduced against him by former Venezuelan head of state Hugo Chávez after a failed coup.

Numerous critics of López Obrador accuse the head of state of "populism" and regard the referendum as a diversionary maneuver in view of the continuing violence of criminal groups, a difficult economic situation and controversial large-scale projects.

The National Electoral Authority initially refused to conduct the poll due to the high cost.

However, the Supreme Court agreed with López Obrador.