Croatia's ruling centre-left coalition faces a challenge to stay in power, with the migrant crisis one of the main issues facing voters on Sunday.

The migrants taking refuge in Europe have extraordinary stories to tell. One of the most fascinating is the tale of 105 year old Bibihal Uzbeki, who traveled 20 days to reach Croatia from Afghanistan — mostly on foot.

Thousands of migrants are stranded at borders in the Balkans, in cold and wet conditions, as their path to western Europe is blocked.

Migrants stranded in Croatia are making renewed efforts to head north despite moves by Slovenia and Hungary to hold them back.