A source says police shot at a group of Uyghurs returning from prayers at a local mosque.
At least 46 are believed killed in the clashes, higher than the death toll of 27 cited by state media.
Officials say they had fled a house search and were making bombs.
Troops flood into a remote rural township after an attack on a local police station ends in gunfire.
Talks over shared use of two key rivers proceed slowly.
The sentences are linked to charges of downloading "extremist" material from the Internet.
The authorities appear to be widening restrictions on face-covering across the troubled region.
They say farms are seized for projects set up by migrant Han Chinese developers.
WUC officials suspect China is behind the Hungarian actions.