Voters in Kazakhstan are set to vote for a new parliament on Sunday just one month after clashes between oil workers and police in the country's west.  

Zhanaozen, the town where nearly 50 businesses were destroyed when state oil workers vented their anger at being sacked over a pay dispute, is still under martial law.

Mobile phone footage of those protests shows police using lethal force to regain control. Stone throwing, gunshots, and beatings are said to have led to the deaths of 16 and injuries to dozens more according to official estimates.

But oil workers remain reluctant to believe official death tolls. Al Jazeera's Robin Forestier-Walker reports from Zhanaozen.