A couple months ago three people got killed in Belgium (Maasmechelen), two members of the Outlaws MC (one 1%-er, one hangaround) and a friend of them. Apparently a guy from the Hell's Angels started a tire shop and the three guys went to the opening reception, even though the boss of the Outlaws had forbidden any of the Outlaws to go there.
Of course members of the Hell's Angels were suspected, but I don't know whether they have found who did it.
There also were fears of revenge and 'war' between the two gangs, but the 'boss' of Outlaws Belgium called all members not to take revenge.
I believe there also was a shooting incident, shots fired, but nobody got hurt, before all of this, but I can't clearly remember the details.