By Susie Beever & James Rodger Tourists in a country popular with holidaying Brits have been urged to heed an important warning amidst rising violent crime. Carjackings and robberies are on the rise in Mexico, and visitors to the country are being warned to take extra measures to keep themselves safe. While violence against tourists is comparatively rare, the country currently has one of the world’s highest crime rates. Mexico ranked 13 in the world list of homicide and violent crime rates, with high levels of cartel-related violence and violence against women and girls. Despite this, 66millio…