NEW YORK (CBSNewYork) – A road rage incident Thursday afternoon in Midtown, Manhattan landed an Uber driver in the hospital, police said.

As CBS2’s Valerie Castro reported, 50th Street was completely shut down Thursday afternoon while police investigated the scene, searching for an apparently angry driver who lashed out at someone else on the road.

It happened around 3:40 p.m. on 50th Street between Sixth and Seventh avenues.

Police said the 43-year-old Uber driver allegedly cut off a van. The driver of the van then became aggressive, left his vehicle and stabbed the Uber driver in the arm.

One witness told CBS2’s Valerie Castro she saw the man stab the Uber driver and then run away.

“He stabbed him and ran off on foot. And when he was coming back, he was headed towards us. And I was just scared, like get out the way. Because everyone was just like trying to record. And he called 911 right away,” she said.

“I called 911 because the guy still had the knife in his hand, running up and down the block. So you know, before anybody else gets hurt,” a man added.

The victim was taken to Mount Sinai West hospital.

“All I see was him running out, and he had like a whole bunch of blood all over his arm,” another woman said.

Uber told CBS2, “We are aware of this concerning report and we are looking into it.”

Police said the suspect drove off in the van.

In what appeared to be an unrelated incident, another man was stabbed in Midtown less than two hours later Thursday.

Police said a man riding a bicycle got into an argument with a homeless man around 5:30 at East 54th Street and Park Avenue. The homeless man allegedly punched the man on the bicycle, who then slashed him in the chest.