It's now exactly 100 days until the winter Olympics kicks off in Sochi, but the build-up to the games has proved controversial.

There have been claims of corruption, and calls for a boycott over Russia's treatment of gay people.

And now there is concern for the thousands of migrant workers helping to prepare the Black Sea resort.

Al Jazeera's David Chater reports from Sochi.

Source: Al Jazeera