rt.com
Police officers, environmentalists and EMERCOM experts at the site of a meteorite hit in the Chelyabinsk Region. Small 0.5-1 cm pieces of black matter resembling rock were found around the ice hole caused by the meteorite. Photo courtesy of the press service of the Interior Ministry's Main Directorate for the Chelyabinsk Region.(RIA Novosti)
I’m gonna hazard a guess...
The guy with the yellow bag has a detector in it. Levels may low enough or type is not of concern (at least in Russia..LOL).
As I said, “potentially radioactive.”