article_snippet: Scroll down for video .
article_snippet: Interior ministry spokesman Sediq Sediqqi also confirmed the incident, saying a probe into the 'very unfortunate' event was underway.
article_snippet: Local television news channel 1TV posted what appeared to be .
article_snippet: footage of the aftermath of the killing on its website and said .
article_snippet: investigation team, a security official said.
highlights_snippet: WARNING: GRAPHIC CONTENT .