FRANKFURT, June 13: Frankfurt police have urged soccer fans attending World Cup games in the city to be wary of bogus police officers attempting to steal cash and passports.

Police handed out leaflets to fans outside the Waldstadion before South Korea's clash with Togo on Tuesday urging fans to be vigilant.

“Over the past few weeks, the Frankfurt police have seen an increase in the number of cases reported of thieves posing as plain clothes police officers,” police stated in the leaflet, which was printed in eight different languages.

Fans were advised that German police officers must show their identity cards.—Reuters