Tourist areas in Tunisia are regarded as being at risk of being targeted by international terrorism, but there have been no incidents since a car bomb attack on the offshore island of Djerba in 2002. Visitors should be vigilant and keep a check on official travel advice. There is little violent crime, but petty theft and pick-pocketing does occur. An increase in bag snatching has been noted in tourist areas and visitors are advised to keep bags close at all times. Travellers are advised to avoid the border areas with Algeria, and be extra cautious if travelling alone in the southern desert areas.