NE Side stabbing leaves one man injured

An argument in the 5300 block of El Medano leads to one man getting stabbed.
Police report that a teenager approached a man and an altercation broke out.
During the argument, the teen pulled out a knife and slashed the man in the arm, police said.
The boy ran off, but police were able to catch him.
Investigators were still determining if an arrest would be necessary.