With the referendum vote largely concluded in most east Ukraine regions, it was virtually inevitable that the day would end without some provocation. And, as expected, moments ago CBS reported that "Ukrainian national guardsmen opened fire Sunday on a crowd outside a town hall in eastern Ukraine and an official for the region's insurgents said there were fatalities."

The details:

The bloodshed in the town of Krasnoarmeisk occurred hours after dozens of guardsmen shut down voting in a referendum on sovereignty for the region. An Associated Press photographer who witnessed the shooting said two people were seen lying unmoving on the ground and insurgent leader Denis Pushilin was quoted by the ITAR-Tass news agency as saying there were an unspecified number of deaths. Several hours earlier, guardsmen came to the town about 20 miles from the regional capital, Donetsk, and dispersed referendum voting that was taking place outside the town hall and they took control of the building. In the evening, more guardsmen arrived in a van and a scuffle broke out with people who were gathered around the building. Then the guardsmen fired shots.

And the incident caught on tape: the man in the blue sweater appears to be hit in the foot by a stray bullet fired by Ukrainian troops as the try to disperse the crowed in Krasnoarmeisk.

The incident from a different perspective.

And a third angle, showing the second person hit by stray assault rifle fire:

Finally, a compilation of what happened based on all available video clips: