Dancers and partygoers have taken to the streets in Rio de Janeiro, marking the first day of the carnival parade. Two million people are expected to take part in the five-day-long event.

Coinciding with carnival, the city has begun celebrating its 450th birthday.

Al Jazeera's Lucia Newman reports from Rio de Janeiro, a city that besides samba and glamour is known for overcrowding and high murder rates.

Source: Al Jazeera