MEXICO CITY - Mexican immigration officials say they have returned 81 migrants to Haiti after attending to “technical” considerations and seeing to the security of the captain of the plane taking them to the Caribbean nation.

Local media reported that several Haitians tried to flee the plane parked at an airport in the southern state of Chiapas on Saturday. El Sol de Mexico newspaper said the uprising took four hours to control and that 10 Mexican police were injured.

Dozens of Haitians were removed from the deportation plane before it took off for Port-au-Prince.

Mexico is under intense pressure to reduce the flow of migrants travelling through the country to reaching the U.S. Most of the migrants are from Central America, but others are from African, Asian or Caribbean countries.