File:БКФ (блок контейнерный фронтовой)- block container frontline.jpg

7-8 Apr. 2017. БКФ (блок контейнерный фронтовой)- box/block container -frontline can contain all sorts of munitions, mostly nothing to do with chemical weapons, see e.g. here. It was speculated that those are chemical weapons containers, as for example here, where marking Р-55 indicate that it contains Zoman (зоман). More chemical weapons marking here. Chemical weapons munitions are e.g. here

Markings shown: БКФ АО-2,5 рт, container for АО-2,5 рт, aviation fragmentation munition of (self) scattering type, 2.5 kg, pic, apparently can be a submunition in a bigger cluster bomb wiki-Russ., but it can be also dispensed from a larger container for several such bombs, as here (which resembles early WW-2 era variant of cluster bomb, I guess; will spin and throw them out....--RS)

Source: RT

Speculation: infowars/Daily Mail

Attempted rebuttal --Chervonets