No it's not, unless by the "truth is the other way around" you mean "Yes, the Russians are sending in tourists and cossacks to stir up trouble in order to pave the ground for a justified invasion of Eastern Ukraine."
Bus-loaded Ukrainians came from Western Ukraine to Donetsk to cry their support for the Maidan-government.
Evidently the buses were full, which was why a lot of the protestors were unable to escape. Does not stand to reason that, if they arrived by bus, they could not all fit back into it again. Unless the report is only thinking of one bus, and maybe there were more that they simply couldn't escape to?
"The EuroMaidan activists link arms in a tight circle and try to dodge flash grenades and mace spray, then riot police encircle them with arms linked, while a policeman radios a report that 10 people have been injured. The EuroMaidan demonstrators try to take cover near a bus that is already packed with people. Somehow, the Russian rioters get around the riot police cordon, and start cracking heads with iron rods or bats."
(From the live-thread link posted previously)
Here's a personal account of someone who was there and receiving the assault. He does not claim to be non-local:
"“For the first time in my life I breathe gas — everyone was coughing, choking, and trying to get out. There was NOWHERE to run. You get out — they tear you apart, if you stay, you choke. We open the door — they “greet” us. I get a kick to the head — my luck, to the side, although a concussion still. We run behind the bus and form a tight circle of about 30 people in a bunch. All around, they shout ‘on your knees!’ and some of us are on our knees anyway; in order to reduce the area of attack, we crouched on our heels, covering our heads with our hands. I’m afraid of letting a blow or a stone through, I realize that if I cut out, they could crush us. The police can barely hold back the enraged crowd, they themselves do not want to suffer retaliation.
They constantly try to drag us out of the circle so it is more convenient to beat us — we hold tight to each other. I look at the police — there is no help there, I see that a window toward Ilyich Avenue has opened up and I make a fast lunge through (in fact I can barely move my legs, running from gangsters in my own city!), I am not running alone, several others have broken through.”
(Same link as above)
08 Mar 2014
The Telegraph’s Damien McElroy explained why so many had gathered to express their anger at the new leaders of Ukraine:
“The people here have rallied because their leader Pavel Gubarev, who declared himself the people’s governor during the week, has been arrested and taken to Kiev.
“They want him released, they call him a political prisoner and they say that their rights are being abused by the revolutionaries who have taken over the government”
The protests in industrial cities, such as Donetsk, that rely on Russia for trade and whose cultural roots lie closer to Moscow than Kiev came as Kremlin-backed troops tightened their grip on Ukraine’s flashpoint peninsula of Crimea.
The predominantly Russian-speaking southern and eastern regions of the Ukraine have been in upheaval since three months of deadly protests brought new pro-European leaders to power in Kiev whom they view with disdain and mistrust.
Watch video at the above link