All political gatherings, protests and demonstrations should be avoided. Thieves are the biggest problem in Peru, with one of the worst reputations in South America. Be especially cautious in crowded areas, on public transport, bus and train stations, and in the centre of Lima at night. Special care is required in the cities of Lima and Cuzco against street and violent crime; three foreign tourists were raped in June 2005. Authorities are planning to increase security on the Inca Trail after an organised tour group were attacked and robbed on 15 November 2005 by a group of armed men. There have been recent attacks on foreigners trekking in the Huayhuash region near Huaraz and trekkers should be cautious in the area and seek advice before setting out. Thieves and muggers also operate in Huaraz and Arequipa. Women should take particular care to only take taxis that have been pre-booked by a hotel or official company. There has also been an increase in the number of crimes associated with taxis in the main cities.