Juan Manuel Gómez Robledo said that only three Mexicans are missing.
The attack in Nice plunged France again into fear just eight months after gunmen killed 130 people in Paris.
President Enrique Peña Nieto condemned the attack in the Southern France city that left at least 60 people dead.
Police shot and killed the driver, who drove at high speed for over 100 meters (yards) along the famed Promenade des Anglais seafront before hitting the mass of spectators.
Sub-prefect Sebastien Humbert described it as a clear criminal attack, although the driver was not yet identified.
Local media said at least 30 were dead after the truck drove through people on the famed Promenade des Anglais on the Nice seafront.
"We should ask what will we say to our grandchildren if we fail," said British Prime Minister David Cameron.
Economy Minister Emmanuel Macron said that the government must give people from poor suburbs more hope of success to reduce the risk of more violent attacks.
The hostages are safe.
That draft urges countries to coordinate military activities with Syrian President Bashar al-Assad's government and has been dismissed by veto-power Britain and other members.