Thousands of people gather for a prayer vigil for the victims of Friday's movie theater mass shooting at the Aurora Municipal Center July 22, 2012 in Aurora, Colorado. Suspect James Holmes, 24, allegedly went on a shooting spree and killed 12 people and injured 59 during an early morning screening of 'The Dark Knight Rises.' (Photo by Chip Somodevilla/Getty Images)

First lady Michelle Obama has met with some of the victims wounded during last months’ massacre at an Aurora, Colo., movie theater and the medical staff that treated them.

Obama arrived at the Medical Center of Aurora at about 3:30 pm Saturday. She thanked doctors, nurses and staff who attended some of the 58 people wounded in last month’s attack during a showing of the latest Batman movie. She also met with some of the shooting victims and their families, including one patient who remains in the hospital’s intensive care unit. Twelve people died in the attack.

Obama spent more than an hour at the hospital before leaving for Denver, where she is to appear at a fundraiser for her husband’s re-election campaign.

James Holmes is accused in the shootings.

Copyright 2012 The Associated Press.