Source: BBCNews
People in Venezuela are voting in congressional elections that are seen as the first serious challenge to the governing socialists in 17 years.
Opinion polls suggest a broad opposition coalition could capitalise on widespread frustration over food shortages, inflation and crime.
The governing PSUV, however, retains wide support in rural areas, and will continue to control the presidency.
Voters will be electing all 167 National Assembly members.
The BBC's Candace Piette says that even if the opposition Democratic Unity Roundtable captures a majority in the assembly, its power will be limited.
However, a win for the coalition - which includes centre-left and centre-right groups - could mark a potential political shift in the country, our correspondent adds.
