SAN MARCOS ATEXQUILAPAN, Mexico (AP) — After days of preparation and donations to cover funeral costs, a Mexican community on Thursday mourned the return of three teens, all cousins, lost among the 53 migrants who died inside a semitrailer in San Antonio, Texas.

The previous 24 hours were a flurry of activity as residents of San Marcos Atexquilapan stepped forward to help the Olivares family receive the bodies of brothers Jaír and Yovani Valencia Olivares, ages 19 and 16, as well as their cousin, 16-year-old Misael Olivares.

Women cleaned banana leaves to make tamales, men carried chairs from one house to another, while the boys’ friends plastered a wall with photos of all three.

Similar scenes of solemn preparation played out across Mexico as the bodies of 16 of those lost in the tragedy were brought back on two military flights Wednesday and then sent to their hometowns and at least one more flight was planned. Mexico’s Foreign Affairs ministry said it would bring back 25 of Mexico’s 26 victims in accordance with their families’ wishes.

Ten of the 53 fatal victims were teenagers, including the Olivares.

The youths were to buried Friday.

The investigation continues into the smuggling ring that ultimately abandoned the trailer of migrants on the outskirts of San Antonio on a day temperatures neared 100 degrees. US authorities have arrested four people, including the truck’s driver.