Two Port of Los Angeles dockworkers who were shot in the mass shooting at the Route 91 Harvest festival concert in Las Vegas remained hospitalized Tuesday.

Mike Ljubic, a 41-year-old crane mechanic from San Pedro, underwent two surgeries Monday for injuries he sustained from a gunshot wound in the back. Ljubic was shielding his wife, Michelle, when he was shot Sunday night.

Doug Cotter, 48, of Garden Grove — among the group of friends with Ljubic — also sustained injuries that were more serious than originally reported. He was shot in the arm but the bullet reportedly traveled to his intestines, according to friends.

Meanwhile, friends and co-workers from Local 13 of the International Longshore and Warehouse Union have set up a GoFundMe page for Ljubic, the father of two young children.

“He is doing better,” said John Iacono, who was with the group but was not injured. Iacono and the others remain in Las Vegas as their friends recover. “Obviously, it will be a long road.”

Iacono said the medical teams, hotels, and local businesses have all offered an outpouring of assistance.

“Homewood Suites (Hilton), the Henderson, Nevada (hotel), St. Rose Dominican Hospital (Sienna Campus) — they see your (hospital visitor) bracelet and they all say, ‘Go get breakfast (on us),’ ” he said. “Every store and every restaurant, people stop you. The people out here are amazing.”

Iacono said the group of longshore workers and their families have attended the country music festival for three years in a row.

“It was such a great concert, everybody was just enjoying the music,” Iacono said of the upbeat vibe Sunday night before the sniper shots rang out.

Authorities say 59 people were killed and more than 500 injured in the shooting that left the nation reeling from yet another mass killing, the largest in modern U.S. history.

The shots were fired from the 32nd floor of the Mandalay Bay Hotel and Casino. The suspect, 64-year-old Stephen Paddock of Mesquite, Nevada, killed himself. His motive remains unknown.