Argentina pension protests see clashes in Buenos Aires

Argentina's government has passed a controversial reform of the country's pension system amid violent protests in the capital Buenos Aires.

Clashes between protesters and police broke out ahead of the vote on the changes, which include an increase in the retirement age for men from 65 to 70 and from 60 to 63 for women.

President Mauricio Macri's government says the move is needed to lower the country's deficit.