A Brazilian tourist was stabbed in the back in Columbus Circle yesterday afternoon, in an apparently unprovoked attack.

According to police, the 23-year-old man was standing in Columbus Circle when he was stabbed in the back by an unknown assailant at about 1:20 p.m. on Sunday. The victim was brought to Cornell Hospital to be treated for his injuries, but police said it wasn't likely he would die.

A witness told the Post that the man was taking pictures of the silver globe outside of the Trump International Hotel when another man came up behind him and stabbed him in the back before calmly walking away. "The guy comes up and hit him and goes away," a food cart vendor told the paper.

The Daily News identified the victim as Martus Martins-Machado, and he told another witness that he had to catch a flight at 6 p.m. Cops told CBS that the assailant didn't take anything from Martins-Machado. Food vendors who brought napkins over to help the victim with all of the bleeding told the channel that he was calm following the stabbing, though it seems like that was due to shock.

"He don’t know what happening. He don’t know what’s going on; what happened for him," a witness said.

A police spokesperson did not have a description of the suspect, and said that an investigation was ongoing.