A 21-year-old man was killed and another 21-year-old man is in critical condition at the hospital after the metal railing they were leaning on collapsed Sunday night and they fell four floors on the mauka side of Ala Moana Center.

The Medical Examiner’s Office has identified the man who died as Nicholas Freitas of Honolulu.

An autopsy will be conducted to determine cause of death.

Police said the accident occurred at 9:45 p.m.

Emergency Medical Services said the two men were treated by paramedics near the Barnes & Noble Book Store at Ala Moana Center and taken in critical condition to the hospital.

The accident occurred several hours after the stores at the shopping center closed at 7 p.m. Sunday.