United Airlines (UAL.N) sparked outrage on Monday, April 10, for the treatment of an Asian doctor who was forcibly dragged off the airline by security officers causing multiple injuries to the passenger just because he was RANDOMLY chosen to be removed from the flight because UA had overbooked the flight.

Videos taken by fellow passengers on board the flight 3411 from Chicago to Louisville showed that the passenger being hauled out of his seat by one of the security officers, who has now been placed on leave pending an investigation.

In the process, the man’s glasses were knocked off and he was hauled down the aisle by stewards after the man refused to give up his seat to allow stand-by aircrew to take it.

The flight was overbooked and United had asked for volunteers to leave so that standby aircrew could board, the report said.

When no one came forward, the airline seemingly decided to take matters into their own hands and decided who was getting off.

In a letter circulated to employees and seen by Reuters, United Chief Executive Officer Oscar Munoz did not apologize for the way the passenger was handled, writing that the passenger had “defied” security officers.

Munoz said there are lessons the company can learn from this situation, though he impressed that he “emphatically” stands behind his employees.

“We sought volunteers and then followed our involuntary denial of boarding process (including offering up to $1,000 in compensation),” Munoz wrote. “When we approached one of these passengers to explain apologetically that he was being denied boarding, he raised his voice and refused to comply with crew member instructions.”

The Chicago Department of Aviation said in a statement that one of the officers did not follow protocol and added that he had been placed on leave pending a review for actions not condoned by the department.

The U.S. Department of Transportation (DOT) said it was reviewing whether United complied with overbook rules that require airlines to set guidelines on how passengers are denied boarding if they do not volunteer to give up their seats.

A passenger Jayse D Anspach posted a video on twitter and said: “#United overbooked and wanted four of us to volunteer to give up our seats for personnel that needed to be at work the next day.

“No one volunteered, so United decided to choose for us. They chose an Asian doctor and his wife.

“The doctor needed to work at the hospital the next day, so he refused to volunteer,” Anspach added.

“10 mins later, the doctor runs back into the plane with a bloody face, clings to a post in the back, chanting, “I need to go home.”

“It looked like he was knocked out, because he went limp and quiet,” Anspach wrote, “and they dragged him out of the plane like a rag doll.”

Another video shows the distressed man, still disheveled from the wrangle, returned to the cabin, clinging onto a curtain at the back of the plane and repeating: “Just kill me. Kill me,” and “I have to go home,” as blood streaked down his mouth.

Much of the online uproar surrounded the appropriateness of removing a paying customer in order to accommodate airline staff.

“They bloodied a senior citizen & dragged him off the plane so THEIR OWN STAFF could take his seat,” one Twitter user wrote.

Social media users questioned whether the man would have been removed as forcefully had he not been Asian.