They were blamed by the PSNI on members of the UVF , who also said UVF guns had been used to try to kill police officers .
On the night of 20 June 2011 , riots involving 500 people erupted in the Short Strand area of East Belfast .
people were blamed by the PSNI on members of the UVF , who also said UVF guns had been used to try to kill police officers .
On the night of 20 June 2011 , riots involving 500 people erupted in the Short Strand area of East Belfast .