Mexican Interpol officer arrested

Mexico\'s main liaison officer with Interpol has been arrested as part of an inquiry into suspected links between officials and drug traffickers.



Ricardo Gutierrez has been placed under house arrest. He can be held for up to 40 days while allegations against him are being investigated.



At least three other Mexican officials have been arrested in recent weeks in connection with what has been dubbed Operation Clean-up.



About 4,000 people have died this year in drug-related violence in Mexico.