The Department of Foreign Affairs and Trade has issued a warning to Australians travelling to Brazil for the Soccer World Cup to take care because of the country's high levels of serious and violent crime.
"We advise you to exercise a high degree of caution," the Department says in a travel advisory.
"Pay close attention to your personal security at all times and monitor the media for information about possible new safety or security risks."
The Department also recommended that Australians avoid all demonstrations and protests as they could turn violent with little or no warning.
According to the advisory, the incidence of violent crime, including muggings, armed robbery, kidnappings and sexual assault, was significant.
It also advised that Australians planning to attend the 2014 FIFA World Cup should read the World Cup travel bulletin in addition to up-to-date travel advice.
The Department's bulletin provides fans with information on ticketing, visas, transport and accommodation, safety and security, in-country emergency contacts, travel health, and helpful match day reminders.
According to the Bulletin, tickets are strictly controlled and should only be purchased from FIFA. People will be refused entry if tickets are purchased from an unauthorised retailer.
It also reminded people that Australian passport holders require a visa to enter Brazil, and the Brazilian Government had special visa arrangements in place for Australians who hold tickets to the World Cup.
The Department's Bulletin also advised people to make sure online bookings, accommodation and internal transport arrangements were confirmed early.
"Accommodation is expected to be extremely limited," it said.
"You should book accommodation in advance of travel, as it is unlikely that you will be able to find accommodation when you arrive."
The Bulletin also advised that travellers see a doctor or travel clinic for a basic health check-up, and to discuss vaccinations.
Australians travelling to the World Cup are encouraged to register their travel and contact details with the Department of Foreign Affairs and Trade and to take out comprehensive travel insurance.
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